Home / 57,129,027.84-78,837,811.92-31,023,330.48

Finding the Fourth Proportional to 57,129,027.84, 78,837,811.92 and 31,023,330.48

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Solution

The fourth proportional to 57,129,027.84, 78,837,811.92 and 31,023,330.48 is: 42,812,062.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,129,027.84 : 78,837,811.92 = 31,023,330.48 : x
  2. Step 2: Convert to fraction form
    57,129,027.84/78,837,811.92 = 31,023,330.48/x
  3. Step 3: Cross multiply
    57,129,027.84x = 78,837,811.92 × 31,023,330.48
  4. Step 4: Simplify right side
    57,129,027.84x = 2,445,811,493,514,243.50
  5. Step 5: Solve for x
    x = 2,445,811,493,514,243.50/57,129,027.84
  6. Step 6: Final answer
    x = 42,812,062.20

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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.