Home / 18,727,817.72-28,091,726.76-5,264,645.72

Finding the Fourth Proportional to 18,727,817.72, 28,091,726.76 and 5,264,645.72

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Solution

The fourth proportional to 18,727,817.72, 28,091,726.76 and 5,264,645.72 is: 7,896,968.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,727,817.72 : 28,091,726.76 = 5,264,645.72 : x
  2. Step 2: Convert to fraction form
    18,727,817.72/28,091,726.76 = 5,264,645.72/x
  3. Step 3: Cross multiply
    18,727,817.72x = 28,091,726.76 × 5,264,645.72
  4. Step 4: Simplify right side
    18,727,817.72x = 147,892,989,054,443.47
  5. Step 5: Solve for x
    x = 147,892,989,054,443.47/18,727,817.72
  6. Step 6: Final answer
    x = 7,896,968.63

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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.