Home / 5,185,836.10-7,778,754.16-1,399,312.90

Finding the Fourth Proportional to 5,185,836.10, 7,778,754.16 and 1,399,312.90

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Solution

The fourth proportional to 5,185,836.10, 7,778,754.16 and 1,399,312.90 is: 2,098,969.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,185,836.10 : 7,778,754.16 = 1,399,312.90 : x
  2. Step 2: Convert to fraction form
    5,185,836.10/7,778,754.16 = 1,399,312.90/x
  3. Step 3: Cross multiply
    5,185,836.10x = 7,778,754.16 × 1,399,312.90
  4. Step 4: Simplify right side
    5,185,836.10x = 10,884,911,042,016.66
  5. Step 5: Solve for x
    x = 10,884,911,042,016.66/5,185,836.10
  6. Step 6: Final answer
    x = 2,098,969.35

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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.