Home / 156,811,087.95-216,390,413.16-87,194,974.29

Finding the Fourth Proportional to 156,811,087.95, 216,390,413.16 and 87,194,974.29

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Solution

The fourth proportional to 156,811,087.95, 216,390,413.16 and 87,194,974.29 is: 120,324,122.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,811,087.95 : 216,390,413.16 = 87,194,974.29 : x
  2. Step 2: Convert to fraction form
    156,811,087.95/216,390,413.16 = 87,194,974.29/x
  3. Step 3: Cross multiply
    156,811,087.95x = 216,390,413.16 × 87,194,974.29
  4. Step 4: Simplify right side
    156,811,087.95x = 18,868,156,512,088,680
  5. Step 5: Solve for x
    x = 18,868,156,512,088,680/156,811,087.95
  6. Step 6: Final answer
    x = 120,324,122.22

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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.