Home / 8,691,505.60-13,032,074.40-5,328,126.40

Finding the Fourth Proportional to 8,691,505.60, 13,032,074.40 and 5,328,126.40

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Solution

The fourth proportional to 8,691,505.60, 13,032,074.40 and 5,328,126.40 is: 7,989,011.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,691,505.60 : 13,032,074.40 = 5,328,126.40 : x
  2. Step 2: Convert to fraction form
    8,691,505.60/13,032,074.40 = 5,328,126.40/x
  3. Step 3: Cross multiply
    8,691,505.60x = 13,032,074.40 × 5,328,126.40
  4. Step 4: Simplify right side
    8,691,505.60x = 69,436,539,657,404.16
  5. Step 5: Solve for x
    x = 69,436,539,657,404.16/8,691,505.60
  6. Step 6: Final answer
    x = 7,989,011.67

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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.