Home / 12,892,111.61-17,791,450.65-7,091,045.61

Finding the Fourth Proportional to 12,892,111.61, 17,791,450.65 and 7,091,045.61

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Solution

The fourth proportional to 12,892,111.61, 17,791,450.65 and 7,091,045.61 is: 9,785,828.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,892,111.61 : 17,791,450.65 = 7,091,045.61 : x
  2. Step 2: Convert to fraction form
    12,892,111.61/17,791,450.65 = 7,091,045.61/x
  3. Step 3: Cross multiply
    12,892,111.61x = 17,791,450.65 × 7,091,045.61
  4. Step 4: Simplify right side
    12,892,111.61x = 126,159,988,027,214.14
  5. Step 5: Solve for x
    x = 126,159,988,027,214.14/12,892,111.61
  6. Step 6: Final answer
    x = 9,785,828.10

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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.