Home / 156,375,937.64-215,802,089.99-85,810,930.64

Finding the Fourth Proportional to 156,375,937.64, 215,802,089.99 and 85,810,930.64

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Solution

The fourth proportional to 156,375,937.64, 215,802,089.99 and 85,810,930.64 is: 118,420,892.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,375,937.64 : 215,802,089.99 = 85,810,930.64 : x
  2. Step 2: Convert to fraction form
    156,375,937.64/215,802,089.99 = 85,810,930.64/x
  3. Step 3: Cross multiply
    156,375,937.64x = 215,802,089.99 × 85,810,930.64
  4. Step 4: Simplify right side
    156,375,937.64x = 18,518,178,174,590,864
  5. Step 5: Solve for x
    x = 18,518,178,174,590,864/156,375,937.64
  6. Step 6: Final answer
    x = 118,420,892.98

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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.