Home / 215,012,971.32-296,743,090.74-122,207,429.50

Finding the Fourth Proportional to 215,012,971.32, 296,743,090.74 and 122,207,429.50

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Solution

The fourth proportional to 215,012,971.32, 296,743,090.74 and 122,207,429.50 is: 168,660,570.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,012,971.32 : 296,743,090.74 = 122,207,429.50 : x
  2. Step 2: Convert to fraction form
    215,012,971.32/296,743,090.74 = 122,207,429.50/x
  3. Step 3: Cross multiply
    215,012,971.32x = 296,743,090.74 × 122,207,429.50
  4. Step 4: Simplify right side
    215,012,971.32x = 36,264,210,341,220,656
  5. Step 5: Solve for x
    x = 36,264,210,341,220,656/215,012,971.32
  6. Step 6: Final answer
    x = 168,660,570.19

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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.