Home / 12,380,111.78-17,072,681.19-7,965,331.52

Finding the Fourth Proportional to 12,380,111.78, 17,072,681.19 and 7,965,331.52

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Solution

The fourth proportional to 12,380,111.78, 17,072,681.19 and 7,965,331.52 is: 10,984,518.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,380,111.78 : 17,072,681.19 = 7,965,331.52 : x
  2. Step 2: Convert to fraction form
    12,380,111.78/17,072,681.19 = 7,965,331.52/x
  3. Step 3: Cross multiply
    12,380,111.78x = 17,072,681.19 × 7,965,331.52
  4. Step 4: Simplify right side
    12,380,111.78x = 135,989,565,528,254.70
  5. Step 5: Solve for x
    x = 135,989,565,528,254.70/12,380,111.78
  6. Step 6: Final answer
    x = 10,984,518.40

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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.