Home / 8,512,663.40-12,747,999.90-5,657,316.20

Finding the Fourth Proportional to 8,512,663.40, 12,747,999.90 and 5,657,316.20

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Solution

The fourth proportional to 8,512,663.40, 12,747,999.90 and 5,657,316.20 is: 8,472,021.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,512,663.40 : 12,747,999.90 = 5,657,316.20 : x
  2. Step 2: Convert to fraction form
    8,512,663.40/12,747,999.90 = 5,657,316.20/x
  3. Step 3: Cross multiply
    8,512,663.40x = 12,747,999.90 × 5,657,316.20
  4. Step 4: Simplify right side
    8,512,663.40x = 72,119,466,351,868.39
  5. Step 5: Solve for x
    x = 72,119,466,351,868.39/8,512,663.40
  6. Step 6: Final answer
    x = 8,472,021.38

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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.