Home / 78,528,861.65-117,806,062.13-23,202,310.61

Finding the Fourth Proportional to 78,528,861.65, 117,806,062.13 and 23,202,310.61

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Solution

The fourth proportional to 78,528,861.65, 117,806,062.13 and 23,202,310.61 is: 34,807,238.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,528,861.65 : 117,806,062.13 = 23,202,310.61 : x
  2. Step 2: Convert to fraction form
    78,528,861.65/117,806,062.13 = 23,202,310.61/x
  3. Step 3: Cross multiply
    78,528,861.65x = 117,806,062.13 × 23,202,310.61
  4. Step 4: Simplify right side
    78,528,861.65x = 2,733,372,845,281,218
  5. Step 5: Solve for x
    x = 2,733,372,845,281,218/78,528,861.65
  6. Step 6: Final answer
    x = 34,807,238.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.