Home / 10,290,221.10-15,435,331.65-6,463,845.90

Finding the Fourth Proportional to 10,290,221.10, 15,435,331.65 and 6,463,845.90

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Solution

The fourth proportional to 10,290,221.10, 15,435,331.65 and 6,463,845.90 is: 9,695,768.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,290,221.10 : 15,435,331.65 = 6,463,845.90 : x
  2. Step 2: Convert to fraction form
    10,290,221.10/15,435,331.65 = 6,463,845.90/x
  3. Step 3: Cross multiply
    10,290,221.10x = 15,435,331.65 × 6,463,845.90
  4. Step 4: Simplify right side
    10,290,221.10x = 99,771,605,200,992.75
  5. Step 5: Solve for x
    x = 99,771,605,200,992.75/10,290,221.10
  6. Step 6: Final answer
    x = 9,695,768.85

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1.5x scale

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.