Home / 130,345,354.80-195,644,003.40-65,722,129.20

Finding the Fourth Proportional to 130,345,354.80, 195,644,003.40 and 65,722,129.20

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Solution

The fourth proportional to 130,345,354.80, 195,644,003.40 and 65,722,129.20 is: 98,646,710.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,345,354.80 : 195,644,003.40 = 65,722,129.20 : x
  2. Step 2: Convert to fraction form
    130,345,354.80/195,644,003.40 = 65,722,129.20/x
  3. Step 3: Cross multiply
    130,345,354.80x = 195,644,003.40 × 65,722,129.20
  4. Step 4: Simplify right side
    130,345,354.80x = 12,858,140,468,660,040
  5. Step 5: Solve for x
    x = 12,858,140,468,660,040/130,345,354.80
  6. Step 6: Final answer
    x = 98,646,710.41

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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.