Home / 672,378,111.33-1,006,498,585.07-438,705,668.76

Finding the Fourth Proportional to 672,378,111.33, 1,006,498,585.07 and 438,705,668.76

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Solution

The fourth proportional to 672,378,111.33, 1,006,498,585.07 and 438,705,668.76 is: 656,708,818.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,378,111.33 : 1,006,498,585.07 = 438,705,668.76 : x
  2. Step 2: Convert to fraction form
    672,378,111.33/1,006,498,585.07 = 438,705,668.76/x
  3. Step 3: Cross multiply
    672,378,111.33x = 1,006,498,585.07 × 438,705,668.76
  4. Step 4: Simplify right side
    672,378,111.33x = 441,556,634,868,601,664
  5. Step 5: Solve for x
    x = 441,556,634,868,601,664/672,378,111.33
  6. Step 6: Final answer
    x = 656,708,818.19

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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.