Home / 10,191,877.60-15,287,816.40-9,412,430.80

Finding the Fourth Proportional to 10,191,877.60, 15,287,816.40 and 9,412,430.80

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Solution

The fourth proportional to 10,191,877.60, 15,287,816.40 and 9,412,430.80 is: 14,118,646.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,191,877.60 : 15,287,816.40 = 9,412,430.80 : x
  2. Step 2: Convert to fraction form
    10,191,877.60/15,287,816.40 = 9,412,430.80/x
  3. Step 3: Cross multiply
    10,191,877.60x = 15,287,816.40 × 9,412,430.80
  4. Step 4: Simplify right side
    10,191,877.60x = 143,895,513,948,105.12
  5. Step 5: Solve for x
    x = 143,895,513,948,105.12/10,191,877.60
  6. Step 6: Final answer
    x = 14,118,646.20

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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.