Home / 147,487,339.20-221,231,008.80-79,462,891.20

Finding the Fourth Proportional to 147,487,339.20, 221,231,008.80 and 79,462,891.20

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Solution

The fourth proportional to 147,487,339.20, 221,231,008.80 and 79,462,891.20 is: 119,194,336.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,487,339.20 : 221,231,008.80 = 79,462,891.20 : x
  2. Step 2: Convert to fraction form
    147,487,339.20/221,231,008.80 = 79,462,891.20/x
  3. Step 3: Cross multiply
    147,487,339.20x = 221,231,008.80 × 79,462,891.20
  4. Step 4: Simplify right side
    147,487,339.20x = 17,579,655,582,340,644
  5. Step 5: Solve for x
    x = 17,579,655,582,340,644/147,487,339.20
  6. Step 6: Final answer
    x = 119,194,336.80

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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.