Home / 12,892,191-17,791,560.18-7,091,124.90

Finding the Fourth Proportional to 12,892,191, 17,791,560.18 and 7,091,124.90

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Solution

The fourth proportional to 12,892,191, 17,791,560.18 and 7,091,124.90 is: 9,785,937.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,892,191 : 17,791,560.18 = 7,091,124.90 : x
  2. Step 2: Convert to fraction form
    12,892,191/17,791,560.18 = 7,091,124.90/x
  3. Step 3: Cross multiply
    12,892,191x = 17,791,560.18 × 7,091,124.90
  4. Step 4: Simplify right side
    12,892,191x = 126,162,175,402,246.48
  5. Step 5: Solve for x
    x = 126,162,175,402,246.48/12,892,191
  6. Step 6: Final answer
    x = 9,785,937.50

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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.