Home / 28,715,506.56-39,627,523.13-15,663,045.87

Finding the Fourth Proportional to 28,715,506.56, 39,627,523.13 and 15,663,045.87

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Solution

The fourth proportional to 28,715,506.56, 39,627,523.13 and 15,663,045.87 is: 21,615,070.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,715,506.56 : 39,627,523.13 = 15,663,045.87 : x
  2. Step 2: Convert to fraction form
    28,715,506.56/39,627,523.13 = 15,663,045.87/x
  3. Step 3: Cross multiply
    28,715,506.56x = 39,627,523.13 × 15,663,045.87
  4. Step 4: Simplify right side
    28,715,506.56x = 620,687,712,460,518.25
  5. Step 5: Solve for x
    x = 620,687,712,460,518.25/28,715,506.56
  6. Step 6: Final answer
    x = 21,615,070.98

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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.