Home / 157,068,872.10-216,748,049.97-90,039,775.72

Finding the Fourth Proportional to 157,068,872.10, 216,748,049.97 and 90,039,775.72

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Solution

The fourth proportional to 157,068,872.10, 216,748,049.97 and 90,039,775.72 is: 124,250,881.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,068,872.10 : 216,748,049.97 = 90,039,775.72 : x
  2. Step 2: Convert to fraction form
    157,068,872.10/216,748,049.97 = 90,039,775.72/x
  3. Step 3: Cross multiply
    157,068,872.10x = 216,748,049.97 × 90,039,775.72
  4. Step 4: Simplify right side
    157,068,872.10x = 19,515,945,807,046,152
  5. Step 5: Solve for x
    x = 19,515,945,807,046,152/157,068,872.10
  6. Step 6: Final answer
    x = 124,250,881.45

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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.