Home / 12,443,819.40-18,665,729.10-10,318,055.40

Finding the Fourth Proportional to 12,443,819.40, 18,665,729.10 and 10,318,055.40

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Solution

The fourth proportional to 12,443,819.40, 18,665,729.10 and 10,318,055.40 is: 15,477,083.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,443,819.40 : 18,665,729.10 = 10,318,055.40 : x
  2. Step 2: Convert to fraction form
    12,443,819.40/18,665,729.10 = 10,318,055.40/x
  3. Step 3: Cross multiply
    12,443,819.40x = 18,665,729.10 × 10,318,055.40
  4. Step 4: Simplify right side
    12,443,819.40x = 192,594,026,935,192.16
  5. Step 5: Solve for x
    x = 192,594,026,935,192.16/12,443,819.40
  6. Step 6: Final answer
    x = 15,477,083.10

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Similar ratio
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1.5x scale

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.