Home / 13,479,386.40-20,219,079.60-11,885,063.40

Finding the Fourth Proportional to 13,479,386.40, 20,219,079.60 and 11,885,063.40

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Solution

The fourth proportional to 13,479,386.40, 20,219,079.60 and 11,885,063.40 is: 17,827,595.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,479,386.40 : 20,219,079.60 = 11,885,063.40 : x
  2. Step 2: Convert to fraction form
    13,479,386.40/20,219,079.60 = 11,885,063.40/x
  3. Step 3: Cross multiply
    13,479,386.40x = 20,219,079.60 × 11,885,063.40
  4. Step 4: Simplify right side
    13,479,386.40x = 240,305,042,935,646.66
  5. Step 5: Solve for x
    x = 240,305,042,935,646.66/13,479,386.40
  6. Step 6: Final answer
    x = 17,827,595.10

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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.