Home / 1,490,175,139.38-2,056,349,019.22-821,082,741.19

Finding the Fourth Proportional to 1,490,175,139.38, 2,056,349,019.22 and 821,082,741.19

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Solution

The fourth proportional to 1,490,175,139.38, 2,056,349,019.22 and 821,082,741.19 is: 1,133,043,120.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490,175,139.38 : 2,056,349,019.22 = 821,082,741.19 : x
  2. Step 2: Convert to fraction form
    1,490,175,139.38/2,056,349,019.22 = 821,082,741.19/x
  3. Step 3: Cross multiply
    1,490,175,139.38x = 2,056,349,019.22 × 821,082,741.19
  4. Step 4: Simplify right side
    1,490,175,139.38x = 1,688,432,689,544,525,824
  5. Step 5: Solve for x
    x = 1,688,432,689,544,525,824/1,490,175,139.38
  6. Step 6: Final answer
    x = 1,133,043,120.18

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Half scale
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Double scale
Find fourth proportional to 1,490,175,140.38, 2,056,349,020.60 and 821,082,742.19
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.