Home / 672,642,905.40-1,008,964,358.10-413,016,262.20

Finding the Fourth Proportional to 672,642,905.40, 1,008,964,358.10 and 413,016,262.20

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Solution

The fourth proportional to 672,642,905.40, 1,008,964,358.10 and 413,016,262.20 is: 619,524,393.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,642,905.40 : 1,008,964,358.10 = 413,016,262.20 : x
  2. Step 2: Convert to fraction form
    672,642,905.40/1,008,964,358.10 = 413,016,262.20/x
  3. Step 3: Cross multiply
    672,642,905.40x = 1,008,964,358.10 × 413,016,262.20
  4. Step 4: Simplify right side
    672,642,905.40x = 416,718,687,875,484,288
  5. Step 5: Solve for x
    x = 416,718,687,875,484,288/672,642,905.40
  6. Step 6: Final answer
    x = 619,524,393.30

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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.