Home / 157,653,329.76-217,563,421.02-87,087,478.11

Finding the Fourth Proportional to 157,653,329.76, 217,563,421.02 and 87,087,478.11

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Solution

The fourth proportional to 157,653,329.76, 217,563,421.02 and 87,087,478.11 is: 120,181,728.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,653,329.76 : 217,563,421.02 = 87,087,478.11 : x
  2. Step 2: Convert to fraction form
    157,653,329.76/217,563,421.02 = 87,087,478.11/x
  3. Step 3: Cross multiply
    157,653,329.76x = 217,563,421.02 × 87,087,478.11
  4. Step 4: Simplify right side
    157,653,329.76x = 18,947,049,665,615,964
  5. Step 5: Solve for x
    x = 18,947,049,665,615,964/157,653,329.76
  6. Step 6: Final answer
    x = 120,181,728.44

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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.