Home / 8,991,028.80-13,486,543.20-5,211,892.80

Finding the Fourth Proportional to 8,991,028.80, 13,486,543.20 and 5,211,892.80

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Solution

The fourth proportional to 8,991,028.80, 13,486,543.20 and 5,211,892.80 is: 7,817,839.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,991,028.80 : 13,486,543.20 = 5,211,892.80 : x
  2. Step 2: Convert to fraction form
    8,991,028.80/13,486,543.20 = 5,211,892.80/x
  3. Step 3: Cross multiply
    8,991,028.80x = 13,486,543.20 × 5,211,892.80
  4. Step 4: Simplify right side
    8,991,028.80x = 70,290,417,400,968.95
  5. Step 5: Solve for x
    x = 70,290,417,400,968.95/8,991,028.80
  6. Step 6: Final answer
    x = 7,817,839.20

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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.