Home / 13,872,881.40-20,801,027.70-7,154,417.40

Finding the Fourth Proportional to 13,872,881.40, 20,801,027.70 and 7,154,417.40

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Solution

The fourth proportional to 13,872,881.40, 20,801,027.70 and 7,154,417.40 is: 10,727,348.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,872,881.40 : 20,801,027.70 = 7,154,417.40 : x
  2. Step 2: Convert to fraction form
    13,872,881.40/20,801,027.70 = 7,154,417.40/x
  3. Step 3: Cross multiply
    13,872,881.40x = 20,801,027.70 × 7,154,417.40
  4. Step 4: Simplify right side
    13,872,881.40x = 148,819,234,514,761.97
  5. Step 5: Solve for x
    x = 148,819,234,514,761.97/13,872,881.40
  6. Step 6: Final answer
    x = 10,727,348.57

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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.