Home / 7,815,998.40-11,723,997.60-6,488,894.40

Finding the Fourth Proportional to 7,815,998.40, 11,723,997.60 and 6,488,894.40

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Solution

The fourth proportional to 7,815,998.40, 11,723,997.60 and 6,488,894.40 is: 9,733,341.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,815,998.40 : 11,723,997.60 = 6,488,894.40 : x
  2. Step 2: Convert to fraction form
    7,815,998.40/11,723,997.60 = 6,488,894.40/x
  3. Step 3: Cross multiply
    7,815,998.40x = 11,723,997.60 × 6,488,894.40
  4. Step 4: Simplify right side
    7,815,998.40x = 76,075,782,372,253.44
  5. Step 5: Solve for x
    x = 76,075,782,372,253.44/7,815,998.40
  6. Step 6: Final answer
    x = 9,733,341.60

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Similar ratio
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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.