Home / 57,246,325.12-78,999,868.89-31,140,780.68

Finding the Fourth Proportional to 57,246,325.12, 78,999,868.89 and 31,140,780.68

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Solution

The fourth proportional to 57,246,325.12, 78,999,868.89 and 31,140,780.68 is: 42,974,244.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,246,325.12 : 78,999,868.89 = 31,140,780.68 : x
  2. Step 2: Convert to fraction form
    57,246,325.12/78,999,868.89 = 31,140,780.68/x
  3. Step 3: Cross multiply
    57,246,325.12x = 78,999,868.89 × 31,140,780.68
  4. Step 4: Simplify right side
    57,246,325.12x = 2,460,117,591,049,745
  5. Step 5: Solve for x
    x = 2,460,117,591,049,745/57,246,325.12
  6. Step 6: Final answer
    x = 42,974,244.82

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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.