Home / 12,890,176.28-17,788,087.96-7,088,957.88

Finding the Fourth Proportional to 12,890,176.28, 17,788,087.96 and 7,088,957.88

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Solution

The fourth proportional to 12,890,176.28, 17,788,087.96 and 7,088,957.88 is: 9,782,566.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,890,176.28 : 17,788,087.96 = 7,088,957.88 : x
  2. Step 2: Convert to fraction form
    12,890,176.28/17,788,087.96 = 7,088,957.88/x
  3. Step 3: Cross multiply
    12,890,176.28x = 17,788,087.96 × 7,088,957.88
  4. Step 4: Simplify right side
    12,890,176.28x = 126,099,006,314,175.12
  5. Step 5: Solve for x
    x = 126,099,006,314,175.12/12,890,176.28
  6. Step 6: Final answer
    x = 9,782,566.47

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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.