Home / 156,749,168.82-216,287,706.06-87,125,083.40

Finding the Fourth Proportional to 156,749,168.82, 216,287,706.06 and 87,125,083.40

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Solution

The fourth proportional to 156,749,168.82, 216,287,706.06 and 87,125,083.40 is: 120,218,081.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,749,168.82 : 216,287,706.06 = 87,125,083.40 : x
  2. Step 2: Convert to fraction form
    156,749,168.82/216,287,706.06 = 87,125,083.40/x
  3. Step 3: Cross multiply
    156,749,168.82x = 216,287,706.06 × 87,125,083.40
  4. Step 4: Simplify right side
    156,749,168.82x = 18,844,084,428,872,188
  5. Step 5: Solve for x
    x = 18,844,084,428,872,188/156,749,168.82
  6. Step 6: Final answer
    x = 120,218,081.99

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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.