Home / 8,915,780.74-13,378,247.01-4,247,144.86

Finding the Fourth Proportional to 8,915,780.74, 13,378,247.01 and 4,247,144.86

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Solution

The fourth proportional to 8,915,780.74, 13,378,247.01 and 4,247,144.86 is: 6,372,897.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,915,780.74 : 13,378,247.01 = 4,247,144.86 : x
  2. Step 2: Convert to fraction form
    8,915,780.74/13,378,247.01 = 4,247,144.86/x
  3. Step 3: Cross multiply
    8,915,780.74x = 13,378,247.01 × 4,247,144.86
  4. Step 4: Simplify right side
    8,915,780.74x = 56,819,353,024,331.88
  5. Step 5: Solve for x
    x = 56,819,353,024,331.88/8,915,780.74
  6. Step 6: Final answer
    x = 6,372,897.08

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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.