Home / 10,521,111.71-15,786,214.02-5,657,733.86

Finding the Fourth Proportional to 10,521,111.71, 15,786,214.02 and 5,657,733.86

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Solution

The fourth proportional to 10,521,111.71, 15,786,214.02 and 5,657,733.86 is: 8,489,045.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,521,111.71 : 15,786,214.02 = 5,657,733.86 : x
  2. Step 2: Convert to fraction form
    10,521,111.71/15,786,214.02 = 5,657,733.86/x
  3. Step 3: Cross multiply
    10,521,111.71x = 15,786,214.02 × 5,657,733.86
  4. Step 4: Simplify right side
    10,521,111.71x = 89,314,197,503,229.66
  5. Step 5: Solve for x
    x = 89,314,197,503,229.66/10,521,111.71
  6. Step 6: Final answer
    x = 8,489,045.64

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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.