Home / 156,352,180.56-215,766,263.40-86,737,563.12

Finding the Fourth Proportional to 156,352,180.56, 215,766,263.40 and 86,737,563.12

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Solution

The fourth proportional to 156,352,180.56, 215,766,263.40 and 86,737,563.12 is: 119,697,978.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,352,180.56 : 215,766,263.40 = 86,737,563.12 : x
  2. Step 2: Convert to fraction form
    156,352,180.56/215,766,263.40 = 86,737,563.12/x
  3. Step 3: Cross multiply
    156,352,180.56x = 215,766,263.40 × 86,737,563.12
  4. Step 4: Simplify right side
    156,352,180.56x = 18,715,039,890,824,048
  5. Step 5: Solve for x
    x = 18,715,039,890,824,048/156,352,180.56
  6. Step 6: Final answer
    x = 119,697,978.14

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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.