Home / 10,878,786.72-15,011,649.88-6,231,679.60

Finding the Fourth Proportional to 10,878,786.72, 15,011,649.88 and 6,231,679.60

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Solution

The fourth proportional to 10,878,786.72, 15,011,649.88 and 6,231,679.60 is: 8,599,101.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,878,786.72 : 15,011,649.88 = 6,231,679.60 : x
  2. Step 2: Convert to fraction form
    10,878,786.72/15,011,649.88 = 6,231,679.60/x
  3. Step 3: Cross multiply
    10,878,786.72x = 15,011,649.88 × 6,231,679.60
  4. Step 4: Simplify right side
    10,878,786.72x = 93,547,792,319,538.45
  5. Step 5: Solve for x
    x = 93,547,792,319,538.45/10,878,786.72
  6. Step 6: Final answer
    x = 8,599,101.60

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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.