Home / 18,727,813.72-28,091,720.76-5,264,641.72

Finding the Fourth Proportional to 18,727,813.72, 28,091,720.76 and 5,264,641.72

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Solution

The fourth proportional to 18,727,813.72, 28,091,720.76 and 5,264,641.72 is: 7,896,962.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,727,813.72 : 28,091,720.76 = 5,264,641.72 : x
  2. Step 2: Convert to fraction form
    18,727,813.72/28,091,720.76 = 5,264,641.72/x
  3. Step 3: Cross multiply
    18,727,813.72x = 28,091,720.76 × 5,264,641.72
  4. Step 4: Simplify right side
    18,727,813.72x = 147,892,845,099,686.09
  5. Step 5: Solve for x
    x = 147,892,845,099,686.09/18,727,813.72
  6. Step 6: Final answer
    x = 7,896,962.63

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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.