Home / 156,578,651.03-216,078,545.30-86,970,508.85

Finding the Fourth Proportional to 156,578,651.03, 216,078,545.30 and 86,970,508.85

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Solution

The fourth proportional to 156,578,651.03, 216,078,545.30 and 86,970,508.85 is: 120,019,306.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,578,651.03 : 216,078,545.30 = 86,970,508.85 : x
  2. Step 2: Convert to fraction form
    156,578,651.03/216,078,545.30 = 86,970,508.85/x
  3. Step 3: Cross multiply
    156,578,651.03x = 216,078,545.30 × 86,970,508.85
  4. Step 4: Simplify right side
    156,578,651.03x = 18,792,461,036,414,120
  5. Step 5: Solve for x
    x = 18,792,461,036,414,120/156,578,651.03
  6. Step 6: Final answer
    x = 120,019,306.03

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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.