Home / 72,448,352.80-108,798,500.40-38,436,128.80

Finding the Fourth Proportional to 72,448,352.80, 108,798,500.40 and 38,436,128.80

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Solution

The fourth proportional to 72,448,352.80, 108,798,500.40 and 38,436,128.80 is: 57,721,024.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,448,352.80 : 108,798,500.40 = 38,436,128.80 : x
  2. Step 2: Convert to fraction form
    72,448,352.80/108,798,500.40 = 38,436,128.80/x
  3. Step 3: Cross multiply
    72,448,352.80x = 108,798,500.40 × 38,436,128.80
  4. Step 4: Simplify right side
    72,448,352.80x = 4,181,793,174,621,251.50
  5. Step 5: Solve for x
    x = 4,181,793,174,621,251.50/72,448,352.80
  6. Step 6: Final answer
    x = 57,721,024.88

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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.