Home / 672,378,006.09-1,006,498,429.05-438,705,565.23

Finding the Fourth Proportional to 672,378,006.09, 1,006,498,429.05 and 438,705,565.23

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Solution

The fourth proportional to 672,378,006.09, 1,006,498,429.05 and 438,705,565.23 is: 656,708,664.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,378,006.09 : 1,006,498,429.05 = 438,705,565.23 : x
  2. Step 2: Convert to fraction form
    672,378,006.09/1,006,498,429.05 = 438,705,565.23/x
  3. Step 3: Cross multiply
    672,378,006.09x = 1,006,498,429.05 × 438,705,565.23
  4. Step 4: Simplify right side
    672,378,006.09x = 441,556,462,219,487,296
  5. Step 5: Solve for x
    x = 441,556,462,219,487,296/672,378,006.09
  6. Step 6: Final answer
    x = 656,708,664.20

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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.