Home / 42,507,946.80-63,769,793.40-13,755,020.40

Finding the Fourth Proportional to 42,507,946.80, 63,769,793.40 and 13,755,020.40

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Solution

The fourth proportional to 42,507,946.80, 63,769,793.40 and 13,755,020.40 is: 20,635,078.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,507,946.80 : 63,769,793.40 = 13,755,020.40 : x
  2. Step 2: Convert to fraction form
    42,507,946.80/63,769,793.40 = 13,755,020.40/x
  3. Step 3: Cross multiply
    42,507,946.80x = 63,769,793.40 × 13,755,020.40
  4. Step 4: Simplify right side
    42,507,946.80x = 877,154,809,120,785.38
  5. Step 5: Solve for x
    x = 877,154,809,120,785.38/42,507,946.80
  6. Step 6: Final answer
    x = 20,635,078.27

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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.