Home / 13,001,868.60-19,505,135.70-5,429,599.80

Finding the Fourth Proportional to 13,001,868.60, 19,505,135.70 and 5,429,599.80

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Solution

The fourth proportional to 13,001,868.60, 19,505,135.70 and 5,429,599.80 is: 8,145,373.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,001,868.60 : 19,505,135.70 = 5,429,599.80 : x
  2. Step 2: Convert to fraction form
    13,001,868.60/19,505,135.70 = 5,429,599.80/x
  3. Step 3: Cross multiply
    13,001,868.60x = 19,505,135.70 × 5,429,599.80
  4. Step 4: Simplify right side
    13,001,868.60x = 105,905,080,895,692.86
  5. Step 5: Solve for x
    x = 105,905,080,895,692.86/13,001,868.60
  6. Step 6: Final answer
    x = 8,145,373.88

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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.