Home / 42,129,010.80-63,193,516.20-30,791,602.80

Finding the Fourth Proportional to 42,129,010.80, 63,193,516.20 and 30,791,602.80

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Solution

The fourth proportional to 42,129,010.80, 63,193,516.20 and 30,791,602.80 is: 46,187,404.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,129,010.80 : 63,193,516.20 = 30,791,602.80 : x
  2. Step 2: Convert to fraction form
    42,129,010.80/63,193,516.20 = 30,791,602.80/x
  3. Step 3: Cross multiply
    42,129,010.80x = 63,193,516.20 × 30,791,602.80
  4. Step 4: Simplify right side
    42,129,010.80x = 1,945,829,650,365,765.50
  5. Step 5: Solve for x
    x = 1,945,829,650,365,765.50/42,129,010.80
  6. Step 6: Final answer
    x = 46,187,404.20

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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.