Home / 7,261,405.20-10,868,488.20-5,655,272.40

Finding the Fourth Proportional to 7,261,405.20, 10,868,488.20 and 5,655,272.40

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Solution

The fourth proportional to 7,261,405.20, 10,868,488.20 and 5,655,272.40 is: 8,464,513.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,261,405.20 : 10,868,488.20 = 5,655,272.40 : x
  2. Step 2: Convert to fraction form
    7,261,405.20/10,868,488.20 = 5,655,272.40/x
  3. Step 3: Cross multiply
    7,261,405.20x = 10,868,488.20 × 5,655,272.40
  4. Step 4: Simplify right side
    7,261,405.20x = 61,464,261,347,185.68
  5. Step 5: Solve for x
    x = 61,464,261,347,185.68/7,261,405.20
  6. Step 6: Final answer
    x = 8,464,513.36

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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.