Home / 42,078,059.70-63,063,945.45-20,466,125.70

Finding the Fourth Proportional to 42,078,059.70, 63,063,945.45 and 20,466,125.70

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Solution

The fourth proportional to 42,078,059.70, 63,063,945.45 and 20,466,125.70 is: 30,673,340.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,078,059.70 : 63,063,945.45 = 20,466,125.70 : x
  2. Step 2: Convert to fraction form
    42,078,059.70/63,063,945.45 = 20,466,125.70/x
  3. Step 3: Cross multiply
    42,078,059.70x = 63,063,945.45 × 20,466,125.70
  4. Step 4: Simplify right side
    42,078,059.70x = 1,290,674,634,717,643
  5. Step 5: Solve for x
    x = 1,290,674,634,717,643/42,078,059.70
  6. Step 6: Final answer
    x = 30,673,340.07

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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.