Home / 8,791,428.48-12,129,416.64-4,923,427.20

Finding the Fourth Proportional to 8,791,428.48, 12,129,416.64 and 4,923,427.20

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Solution

The fourth proportional to 8,791,428.48, 12,129,416.64 and 4,923,427.20 is: 6,792,786.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,791,428.48 : 12,129,416.64 = 4,923,427.20 : x
  2. Step 2: Convert to fraction form
    8,791,428.48/12,129,416.64 = 4,923,427.20/x
  3. Step 3: Cross multiply
    8,791,428.48x = 12,129,416.64 × 4,923,427.20
  4. Step 4: Simplify right side
    8,791,428.48x = 59,718,299,805,508.61
  5. Step 5: Solve for x
    x = 59,718,299,805,508.61/8,791,428.48
  6. Step 6: Final answer
    x = 6,792,786.85

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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.