Home / 157,068,882.36-216,748,064.10-90,039,785.97

Finding the Fourth Proportional to 157,068,882.36, 216,748,064.10 and 90,039,785.97

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Solution

The fourth proportional to 157,068,882.36, 216,748,064.10 and 90,039,785.97 is: 124,250,895.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,068,882.36 : 216,748,064.10 = 90,039,785.97 : x
  2. Step 2: Convert to fraction form
    157,068,882.36/216,748,064.10 = 90,039,785.97/x
  3. Step 3: Cross multiply
    157,068,882.36x = 216,748,064.10 × 90,039,785.97
  4. Step 4: Simplify right side
    157,068,882.36x = 19,515,949,300,975,840
  5. Step 5: Solve for x
    x = 19,515,949,300,975,840/157,068,882.36
  6. Step 6: Final answer
    x = 124,250,895.58

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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.