Home / 11,878,313.76-16,392,073-6,445,805.76

Finding the Fourth Proportional to 11,878,313.76, 16,392,073 and 6,445,805.76

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Solution

The fourth proportional to 11,878,313.76, 16,392,073 and 6,445,805.76 is: 8,895,211.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,878,313.76 : 16,392,073 = 6,445,805.76 : x
  2. Step 2: Convert to fraction form
    11,878,313.76/16,392,073 = 6,445,805.76/x
  3. Step 3: Cross multiply
    11,878,313.76x = 16,392,073 × 6,445,805.76
  4. Step 4: Simplify right side
    11,878,313.76x = 105,660,118,561,740.47
  5. Step 5: Solve for x
    x = 105,660,118,561,740.47/11,878,313.76
  6. Step 6: Final answer
    x = 8,895,211.95

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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.