Home / 12,127,434.30-18,191,151.45-11,135,411.10

Finding the Fourth Proportional to 12,127,434.30, 18,191,151.45 and 11,135,411.10

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Solution

The fourth proportional to 12,127,434.30, 18,191,151.45 and 11,135,411.10 is: 16,703,116.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,127,434.30 : 18,191,151.45 = 11,135,411.10 : x
  2. Step 2: Convert to fraction form
    12,127,434.30/18,191,151.45 = 11,135,411.10/x
  3. Step 3: Cross multiply
    12,127,434.30x = 18,191,151.45 × 11,135,411.10
  4. Step 4: Simplify right side
    12,127,434.30x = 202,565,949,778,111.09
  5. Step 5: Solve for x
    x = 202,565,949,778,111.09/12,127,434.30
  6. Step 6: Final answer
    x = 16,703,116.65

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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.