Home / 12,358,905.40-18,538,358.10-10,492,665.40

Finding the Fourth Proportional to 12,358,905.40, 18,538,358.10 and 10,492,665.40

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Solution

The fourth proportional to 12,358,905.40, 18,538,358.10 and 10,492,665.40 is: 15,738,998.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,358,905.40 : 18,538,358.10 = 10,492,665.40 : x
  2. Step 2: Convert to fraction form
    12,358,905.40/18,538,358.10 = 10,492,665.40/x
  3. Step 3: Cross multiply
    12,358,905.40x = 18,538,358.10 × 10,492,665.40
  4. Step 4: Simplify right side
    12,358,905.40x = 194,516,788,608,679.75
  5. Step 5: Solve for x
    x = 194,516,788,608,679.75/12,358,905.40
  6. Step 6: Final answer
    x = 15,738,998.10

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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.