Home / 12,887,968.48-17,785,460.52-7,087,124.32

Finding the Fourth Proportional to 12,887,968.48, 17,785,460.52 and 7,087,124.32

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Solution

The fourth proportional to 12,887,968.48, 17,785,460.52 and 7,087,124.32 is: 9,780,266.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,887,968.48 : 17,785,460.52 = 7,087,124.32 : x
  2. Step 2: Convert to fraction form
    12,887,968.48/17,785,460.52 = 7,087,124.32/x
  3. Step 3: Cross multiply
    12,887,968.48x = 17,785,460.52 × 7,087,124.32
  4. Step 4: Simplify right side
    12,887,968.48x = 126,047,769,793,691.84
  5. Step 5: Solve for x
    x = 126,047,769,793,691.84/12,887,968.48
  6. Step 6: Final answer
    x = 9,780,266.77

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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.