Home / 5,429,918.40-8,145,799.20-1,643,371.20

Finding the Fourth Proportional to 5,429,918.40, 8,145,799.20 and 1,643,371.20

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Solution

The fourth proportional to 5,429,918.40, 8,145,799.20 and 1,643,371.20 is: 2,465,335.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,429,918.40 : 8,145,799.20 = 1,643,371.20 : x
  2. Step 2: Convert to fraction form
    5,429,918.40/8,145,799.20 = 1,643,371.20/x
  3. Step 3: Cross multiply
    5,429,918.40x = 8,145,799.20 × 1,643,371.20
  4. Step 4: Simplify right side
    5,429,918.40x = 13,386,571,806,263.04
  5. Step 5: Solve for x
    x = 13,386,571,806,263.04/5,429,918.40
  6. Step 6: Final answer
    x = 2,465,335.72

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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.