Home / 521,979,630.40-782,944,562.40-176,899,412.80

Finding the Fourth Proportional to 521,979,630.40, 782,944,562.40 and 176,899,412.80

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Solution

The fourth proportional to 521,979,630.40, 782,944,562.40 and 176,899,412.80 is: 265,340,686.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,979,630.40 : 782,944,562.40 = 176,899,412.80 : x
  2. Step 2: Convert to fraction form
    521,979,630.40/782,944,562.40 = 176,899,412.80/x
  3. Step 3: Cross multiply
    521,979,630.40x = 782,944,562.40 × 176,899,412.80
  4. Step 4: Simplify right side
    521,979,630.40x = 138,502,433,343,512,960
  5. Step 5: Solve for x
    x = 138,502,433,343,512,960/521,979,630.40
  6. Step 6: Final answer
    x = 265,340,686.26

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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.