Home / 38,490,815.05-57,744,840.57-12,931,127.35

Finding the Fourth Proportional to 38,490,815.05, 57,744,840.57 and 12,931,127.35

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Solution

The fourth proportional to 38,490,815.05, 57,744,840.57 and 12,931,127.35 is: 19,399,586.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,490,815.05 : 57,744,840.57 = 12,931,127.35 : x
  2. Step 2: Convert to fraction form
    38,490,815.05/57,744,840.57 = 12,931,127.35/x
  3. Step 3: Cross multiply
    38,490,815.05x = 57,744,840.57 × 12,931,127.35
  4. Step 4: Simplify right side
    38,490,815.05x = 746,705,887,023,262.75
  5. Step 5: Solve for x
    x = 746,705,887,023,262.75/38,490,815.05
  6. Step 6: Final answer
    x = 19,399,586.27

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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.