Home / 672,378,151.60-1,006,498,645.24-438,705,709.02

Finding the Fourth Proportional to 672,378,151.60, 1,006,498,645.24 and 438,705,709.02

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Solution

The fourth proportional to 672,378,151.60, 1,006,498,645.24 and 438,705,709.02 is: 656,708,878.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,378,151.60 : 1,006,498,645.24 = 438,705,709.02 : x
  2. Step 2: Convert to fraction form
    672,378,151.60/1,006,498,645.24 = 438,705,709.02/x
  3. Step 3: Cross multiply
    672,378,151.60x = 1,006,498,645.24 × 438,705,709.02
  4. Step 4: Simplify right side
    672,378,151.60x = 441,556,701,787,683,648
  5. Step 5: Solve for x
    x = 441,556,701,787,683,648/672,378,151.60
  6. Step 6: Final answer
    x = 656,708,878.38

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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.