Home / 8,780,636.40-12,119,160.60-5,343,984.24

Finding the Fourth Proportional to 8,780,636.40, 12,119,160.60 and 5,343,984.24

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Solution

The fourth proportional to 8,780,636.40, 12,119,160.60 and 5,343,984.24 is: 7,375,843.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,780,636.40 : 12,119,160.60 = 5,343,984.24 : x
  2. Step 2: Convert to fraction form
    8,780,636.40/12,119,160.60 = 5,343,984.24/x
  3. Step 3: Cross multiply
    8,780,636.40x = 12,119,160.60 × 5,343,984.24
  4. Step 4: Simplify right side
    8,780,636.40x = 64,764,603,248,428.95
  5. Step 5: Solve for x
    x = 64,764,603,248,428.95/8,780,636.40
  6. Step 6: Final answer
    x = 7,375,843.88

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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.