Home / 5,429,913.40-8,145,791.70-1,643,366.20

Finding the Fourth Proportional to 5,429,913.40, 8,145,791.70 and 1,643,366.20

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Solution

The fourth proportional to 5,429,913.40, 8,145,791.70 and 1,643,366.20 is: 2,465,328.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,429,913.40 : 8,145,791.70 = 1,643,366.20 : x
  2. Step 2: Convert to fraction form
    5,429,913.40/8,145,791.70 = 1,643,366.20/x
  3. Step 3: Cross multiply
    5,429,913.40x = 8,145,791.70 × 1,643,366.20
  4. Step 4: Simplify right side
    5,429,913.40x = 13,386,518,752,020.54
  5. Step 5: Solve for x
    x = 13,386,518,752,020.54/5,429,913.40
  6. Step 6: Final answer
    x = 2,465,328.22

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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.