Home / 1,265,741,810.64-1,899,158,328.72-683,360,419.32

Finding the Fourth Proportional to 1,265,741,810.64, 1,899,158,328.72 and 683,360,419.32

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Solution

The fourth proportional to 1,265,741,810.64, 1,899,158,328.72 and 683,360,419.32 is: 1,025,335,199.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,265,741,810.64 : 1,899,158,328.72 = 683,360,419.32 : x
  2. Step 2: Convert to fraction form
    1,265,741,810.64/1,899,158,328.72 = 683,360,419.32/x
  3. Step 3: Cross multiply
    1,265,741,810.64x = 1,899,158,328.72 × 683,360,419.32
  4. Step 4: Simplify right side
    1,265,741,810.64x = 1,297,809,631,869,169,664
  5. Step 5: Solve for x
    x = 1,297,809,631,869,169,664/1,265,741,810.64
  6. Step 6: Final answer
    x = 1,025,335,199.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.