Home / 12,892,898.96-17,791,829.40-7,091,680.40

Finding the Fourth Proportional to 12,892,898.96, 17,791,829.40 and 7,091,680.40

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Solution

The fourth proportional to 12,892,898.96, 17,791,829.40 and 7,091,680.40 is: 9,786,314.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,892,898.96 : 17,791,829.40 = 7,091,680.40 : x
  2. Step 2: Convert to fraction form
    12,892,898.96/17,791,829.40 = 7,091,680.40/x
  3. Step 3: Cross multiply
    12,892,898.96x = 17,791,829.40 × 7,091,680.40
  4. Step 4: Simplify right side
    12,892,898.96x = 126,173,967,836,123.75
  5. Step 5: Solve for x
    x = 126,173,967,836,123.75/12,892,898.96
  6. Step 6: Final answer
    x = 9,786,314.79

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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.