Home / 12,390,947.12-17,095,778.04-7,427,577.53

Finding the Fourth Proportional to 12,390,947.12, 17,095,778.04 and 7,427,577.53

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Solution

The fourth proportional to 12,390,947.12, 17,095,778.04 and 7,427,577.53 is: 10,247,821.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,390,947.12 : 17,095,778.04 = 7,427,577.53 : x
  2. Step 2: Convert to fraction form
    12,390,947.12/17,095,778.04 = 7,427,577.53/x
  3. Step 3: Cross multiply
    12,390,947.12x = 17,095,778.04 × 7,427,577.53
  4. Step 4: Simplify right side
    12,390,947.12x = 126,980,216,827,771.44
  5. Step 5: Solve for x
    x = 126,980,216,827,771.44/12,390,947.12
  6. Step 6: Final answer
    x = 10,247,821.70

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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.