Home / 147,965,387.20-221,948,080.80-79,940,939.20

Finding the Fourth Proportional to 147,965,387.20, 221,948,080.80 and 79,940,939.20

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Solution

The fourth proportional to 147,965,387.20, 221,948,080.80 and 79,940,939.20 is: 119,911,408.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,965,387.20 : 221,948,080.80 = 79,940,939.20 : x
  2. Step 2: Convert to fraction form
    147,965,387.20/221,948,080.80 = 79,940,939.20/x
  3. Step 3: Cross multiply
    147,965,387.20x = 221,948,080.80 × 79,940,939.20
  4. Step 4: Simplify right side
    147,965,387.20x = 17,742,738,032,789,488
  5. Step 5: Solve for x
    x = 17,742,738,032,789,488/147,965,387.20
  6. Step 6: Final answer
    x = 119,911,408.80

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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.