Home / 442,242,001.80-663,363,002.70-391,223,665.80

Finding the Fourth Proportional to 442,242,001.80, 663,363,002.70 and 391,223,665.80

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Solution

The fourth proportional to 442,242,001.80, 663,363,002.70 and 391,223,665.80 is: 586,835,498.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,242,001.80 : 663,363,002.70 = 391,223,665.80 : x
  2. Step 2: Convert to fraction form
    442,242,001.80/663,363,002.70 = 391,223,665.80/x
  3. Step 3: Cross multiply
    442,242,001.80x = 663,363,002.70 × 391,223,665.80
  4. Step 4: Simplify right side
    442,242,001.80x = 259,523,305,672,389,312
  5. Step 5: Solve for x
    x = 259,523,305,672,389,312/442,242,001.80
  6. Step 6: Final answer
    x = 586,835,498.70

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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.