Home / 207,845,118.72-311,836,916.88-69,684,397.20

Finding the Fourth Proportional to 207,845,118.72, 311,836,916.88 and 69,684,397.20

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Solution

The fourth proportional to 207,845,118.72, 311,836,916.88 and 69,684,397.20 is: 104,549,809.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,845,118.72 : 311,836,916.88 = 69,684,397.20 : x
  2. Step 2: Convert to fraction form
    207,845,118.72/311,836,916.88 = 69,684,397.20/x
  3. Step 3: Cross multiply
    207,845,118.72x = 311,836,916.88 × 69,684,397.20
  4. Step 4: Simplify right side
    207,845,118.72x = 21,730,167,577,489,304
  5. Step 5: Solve for x
    x = 21,730,167,577,489,304/207,845,118.72
  6. Step 6: Final answer
    x = 104,549,809.55

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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.