Home / 485,030,122.20-727,545,183.30-139,995,005.40

Finding the Fourth Proportional to 485,030,122.20, 727,545,183.30 and 139,995,005.40

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Solution

The fourth proportional to 485,030,122.20, 727,545,183.30 and 139,995,005.40 is: 209,992,508.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,030,122.20 : 727,545,183.30 = 139,995,005.40 : x
  2. Step 2: Convert to fraction form
    485,030,122.20/727,545,183.30 = 139,995,005.40/x
  3. Step 3: Cross multiply
    485,030,122.20x = 727,545,183.30 × 139,995,005.40
  4. Step 4: Simplify right side
    485,030,122.20x = 101,852,691,864,827,488
  5. Step 5: Solve for x
    x = 101,852,691,864,827,488/485,030,122.20
  6. Step 6: Final answer
    x = 209,992,508.10

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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.