Home / 497,886,385.47-687,173,148.87-296,956,139.78

Finding the Fourth Proportional to 497,886,385.47, 687,173,148.87 and 296,956,139.78

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Solution

The fourth proportional to 497,886,385.47, 687,173,148.87 and 296,956,139.78 is: 409,853,114.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,886,385.47 : 687,173,148.87 = 296,956,139.78 : x
  2. Step 2: Convert to fraction form
    497,886,385.47/687,173,148.87 = 296,956,139.78/x
  3. Step 3: Cross multiply
    497,886,385.47x = 687,173,148.87 × 296,956,139.78
  4. Step 4: Simplify right side
    497,886,385.47x = 204,060,285,651,172,768
  5. Step 5: Solve for x
    x = 204,060,285,651,172,768/497,886,385.47
  6. Step 6: Final answer
    x = 409,853,114.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.