Home / 20,724,047.20-31,086,070.80-11,766,095.20

Finding the Fourth Proportional to 20,724,047.20, 31,086,070.80 and 11,766,095.20

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Solution

The fourth proportional to 20,724,047.20, 31,086,070.80 and 11,766,095.20 is: 17,649,142.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,724,047.20 : 31,086,070.80 = 11,766,095.20 : x
  2. Step 2: Convert to fraction form
    20,724,047.20/31,086,070.80 = 11,766,095.20/x
  3. Step 3: Cross multiply
    20,724,047.20x = 31,086,070.80 × 11,766,095.20
  4. Step 4: Simplify right side
    20,724,047.20x = 365,761,668,426,740.12
  5. Step 5: Solve for x
    x = 365,761,668,426,740.12/20,724,047.20
  6. Step 6: Final answer
    x = 17,649,142.80

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1.5x scale

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.