Home / 12,888,094.66-17,784,961.76-7,087,120.90

Finding the Fourth Proportional to 12,888,094.66, 17,784,961.76 and 7,087,120.90

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Solution

The fourth proportional to 12,888,094.66, 17,784,961.76 and 7,087,120.90 is: 9,779,892.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,888,094.66 : 17,784,961.76 = 7,087,120.90 : x
  2. Step 2: Convert to fraction form
    12,888,094.66/17,784,961.76 = 7,087,120.90/x
  3. Step 3: Cross multiply
    12,888,094.66x = 17,784,961.76 × 7,087,120.90
  4. Step 4: Simplify right side
    12,888,094.66x = 126,044,174,194,996.80
  5. Step 5: Solve for x
    x = 126,044,174,194,996.80/12,888,094.66
  6. Step 6: Final answer
    x = 9,779,892.03

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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.