Home / 130,345,000.80-195,643,472.40-65,721,775.20

Finding the Fourth Proportional to 130,345,000.80, 195,643,472.40 and 65,721,775.20

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Solution

The fourth proportional to 130,345,000.80, 195,643,472.40 and 65,721,775.20 is: 98,646,179.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,345,000.80 : 195,643,472.40 = 65,721,775.20 : x
  2. Step 2: Convert to fraction form
    130,345,000.80/195,643,472.40 = 65,721,775.20/x
  3. Step 3: Cross multiply
    130,345,000.80x = 195,643,472.40 × 65,721,775.20
  4. Step 4: Simplify right side
    130,345,000.80x = 12,858,036,312,420,206
  5. Step 5: Solve for x
    x = 12,858,036,312,420,206/130,345,000.80
  6. Step 6: Final answer
    x = 98,646,179.24

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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.