Home / 10,418,809.20-15,607,218.60-7,017,586.80

Finding the Fourth Proportional to 10,418,809.20, 15,607,218.60 and 7,017,586.80

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Solution

The fourth proportional to 10,418,809.20, 15,607,218.60 and 7,017,586.80 is: 10,512,238.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,418,809.20 : 15,607,218.60 = 7,017,586.80 : x
  2. Step 2: Convert to fraction form
    10,418,809.20/15,607,218.60 = 7,017,586.80/x
  3. Step 3: Cross multiply
    10,418,809.20x = 15,607,218.60 × 7,017,586.80
  4. Step 4: Simplify right side
    10,418,809.20x = 109,525,011,232,074.47
  5. Step 5: Solve for x
    x = 109,525,011,232,074.47/10,418,809.20
  6. Step 6: Final answer
    x = 10,512,238.89

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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.