Home / 8,515,212.90-12,778,460.68-4,679,713.86

Finding the Fourth Proportional to 8,515,212.90, 12,778,460.68 and 4,679,713.86

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Solution

The fourth proportional to 8,515,212.90, 12,778,460.68 and 4,679,713.86 is: 7,022,671.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,515,212.90 : 12,778,460.68 = 4,679,713.86 : x
  2. Step 2: Convert to fraction form
    8,515,212.90/12,778,460.68 = 4,679,713.86/x
  3. Step 3: Cross multiply
    8,515,212.90x = 12,778,460.68 × 4,679,713.86
  4. Step 4: Simplify right side
    8,515,212.90x = 59,799,539,553,661.03
  5. Step 5: Solve for x
    x = 59,799,539,553,661.03/8,515,212.90
  6. Step 6: Final answer
    x = 7,022,671.10

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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.