Home / 157,272,534.40-217,037,105.04-87,662,329.24

Finding the Fourth Proportional to 157,272,534.40, 217,037,105.04 and 87,662,329.24

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Solution

The fourth proportional to 157,272,534.40, 217,037,105.04 and 87,662,329.24 is: 120,974,575.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,272,534.40 : 217,037,105.04 = 87,662,329.24 : x
  2. Step 2: Convert to fraction form
    157,272,534.40/217,037,105.04 = 87,662,329.24/x
  3. Step 3: Cross multiply
    157,272,534.40x = 217,037,105.04 × 87,662,329.24
  4. Step 4: Simplify right side
    157,272,534.40x = 19,025,978,159,312,940
  5. Step 5: Solve for x
    x = 19,025,978,159,312,940/157,272,534.40
  6. Step 6: Final answer
    x = 120,974,575.96

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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.