Home / 10,509,292.80-15,763,939.20-5,715,129.60

Finding the Fourth Proportional to 10,509,292.80, 15,763,939.20 and 5,715,129.60

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Solution

The fourth proportional to 10,509,292.80, 15,763,939.20 and 5,715,129.60 is: 8,572,694.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,509,292.80 : 15,763,939.20 = 5,715,129.60 : x
  2. Step 2: Convert to fraction form
    10,509,292.80/15,763,939.20 = 5,715,129.60/x
  3. Step 3: Cross multiply
    10,509,292.80x = 15,763,939.20 × 5,715,129.60
  4. Step 4: Simplify right side
    10,509,292.80x = 90,092,955,534,520.31
  5. Step 5: Solve for x
    x = 90,092,955,534,520.31/10,509,292.80
  6. Step 6: Final answer
    x = 8,572,694.40

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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.