Home / 12,892,289.20-17,791,368.18-7,091,512.24

Finding the Fourth Proportional to 12,892,289.20, 17,791,368.18 and 7,091,512.24

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Solution

The fourth proportional to 12,892,289.20, 17,791,368.18 and 7,091,512.24 is: 9,786,291.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,892,289.20 : 17,791,368.18 = 7,091,512.24 : x
  2. Step 2: Convert to fraction form
    12,892,289.20/17,791,368.18 = 7,091,512.24/x
  3. Step 3: Cross multiply
    12,892,289.20x = 17,791,368.18 × 7,091,512.24
  4. Step 4: Simplify right side
    12,892,289.20x = 126,167,705,214,816.53
  5. Step 5: Solve for x
    x = 126,167,705,214,816.53/12,892,289.20
  6. Step 6: Final answer
    x = 9,786,291.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.