Home / 10,656,128.40-15,971,070.60-7,244,408.40

Finding the Fourth Proportional to 10,656,128.40, 15,971,070.60 and 7,244,408.40

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Solution

The fourth proportional to 10,656,128.40, 15,971,070.60 and 7,244,408.40 is: 10,857,691.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,656,128.40 : 15,971,070.60 = 7,244,408.40 : x
  2. Step 2: Convert to fraction form
    10,656,128.40/15,971,070.60 = 7,244,408.40/x
  3. Step 3: Cross multiply
    10,656,128.40x = 15,971,070.60 × 7,244,408.40
  4. Step 4: Simplify right side
    10,656,128.40x = 115,700,958,011,633.05
  5. Step 5: Solve for x
    x = 115,700,958,011,633.05/10,656,128.40
  6. Step 6: Final answer
    x = 10,857,691.81

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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.