Home / 8,387,404.60-12,590,438.10-5,196,134.20

Finding the Fourth Proportional to 8,387,404.60, 12,590,438.10 and 5,196,134.20

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Solution

The fourth proportional to 8,387,404.60, 12,590,438.10 and 5,196,134.20 is: 7,799,982.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,387,404.60 : 12,590,438.10 = 5,196,134.20 : x
  2. Step 2: Convert to fraction form
    8,387,404.60/12,590,438.10 = 5,196,134.20/x
  3. Step 3: Cross multiply
    8,387,404.60x = 12,590,438.10 × 5,196,134.20
  4. Step 4: Simplify right side
    8,387,404.60x = 65,421,606,004,393.02
  5. Step 5: Solve for x
    x = 65,421,606,004,393.02/8,387,404.60
  6. Step 6: Final answer
    x = 7,799,982.13

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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.