Home / 10,240,621.40-15,360,932.10-9,213,168.80

Finding the Fourth Proportional to 10,240,621.40, 15,360,932.10 and 9,213,168.80

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Solution

The fourth proportional to 10,240,621.40, 15,360,932.10 and 9,213,168.80 is: 13,819,753.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,240,621.40 : 15,360,932.10 = 9,213,168.80 : x
  2. Step 2: Convert to fraction form
    10,240,621.40/15,360,932.10 = 9,213,168.80/x
  3. Step 3: Cross multiply
    10,240,621.40x = 15,360,932.10 × 9,213,168.80
  4. Step 4: Simplify right side
    10,240,621.40x = 141,522,860,362,638.50
  5. Step 5: Solve for x
    x = 141,522,860,362,638.50/10,240,621.40
  6. Step 6: Final answer
    x = 13,819,753.20

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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.