Home / 20,792,780.80-31,184,505.60-13,654,412.80

Finding the Fourth Proportional to 20,792,780.80, 31,184,505.60 and 13,654,412.80

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Solution

The fourth proportional to 20,792,780.80, 31,184,505.60 and 13,654,412.80 is: 20,478,555.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,792,780.80 : 31,184,505.60 = 13,654,412.80 : x
  2. Step 2: Convert to fraction form
    20,792,780.80/31,184,505.60 = 13,654,412.80/x
  3. Step 3: Cross multiply
    20,792,780.80x = 31,184,505.60 × 13,654,412.80
  4. Step 4: Simplify right side
    20,792,780.80x = 425,806,112,426,311.75
  5. Step 5: Solve for x
    x = 425,806,112,426,311.75/20,792,780.80
  6. Step 6: Final answer
    x = 20,478,555.35

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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.