Home / 12,127,905.10-18,191,857.65-10,634,913.10

Finding the Fourth Proportional to 12,127,905.10, 18,191,857.65 and 10,634,913.10

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Solution

The fourth proportional to 12,127,905.10, 18,191,857.65 and 10,634,913.10 is: 15,952,369.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,127,905.10 : 18,191,857.65 = 10,634,913.10 : x
  2. Step 2: Convert to fraction form
    12,127,905.10/18,191,857.65 = 10,634,913.10/x
  3. Step 3: Cross multiply
    12,127,905.10x = 18,191,857.65 × 10,634,913.10
  4. Step 4: Simplify right side
    12,127,905.10x = 193,468,825,235,320.19
  5. Step 5: Solve for x
    x = 193,468,825,235,320.19/12,127,905.10
  6. Step 6: Final answer
    x = 15,952,369.65

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Double scale
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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.