Home / 42,365,688.30-63,559,358.10-13,612,105.80

Finding the Fourth Proportional to 42,365,688.30, 63,559,358.10 and 13,612,105.80

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Solution

The fourth proportional to 42,365,688.30, 63,559,358.10 and 13,612,105.80 is: 20,421,636.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,365,688.30 : 63,559,358.10 = 13,612,105.80 : x
  2. Step 2: Convert to fraction form
    42,365,688.30/63,559,358.10 = 13,612,105.80/x
  3. Step 3: Cross multiply
    42,365,688.30x = 63,559,358.10 × 13,612,105.80
  4. Step 4: Simplify right side
    42,365,688.30x = 865,176,707,037,287
  5. Step 5: Solve for x
    x = 865,176,707,037,287/42,365,688.30
  6. Step 6: Final answer
    x = 20,421,636.98

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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.