Home / 485,309,686.70-727,892,774.58-178,530,055.04

Finding the Fourth Proportional to 485,309,686.70, 727,892,774.58 and 178,530,055.04

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Solution

The fourth proportional to 485,309,686.70, 727,892,774.58 and 178,530,055.04 is: 267,768,686.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,309,686.70 : 727,892,774.58 = 178,530,055.04 : x
  2. Step 2: Convert to fraction form
    485,309,686.70/727,892,774.58 = 178,530,055.04/x
  3. Step 3: Cross multiply
    485,309,686.70x = 727,892,774.58 × 178,530,055.04
  4. Step 4: Simplify right side
    485,309,686.70x = 129,950,737,108,985,712
  5. Step 5: Solve for x
    x = 129,950,737,108,985,712/485,309,686.70
  6. Step 6: Final answer
    x = 267,768,686.00

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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.