Home / 5,178,124.80-7,767,187.20-3,386,534.40

Finding the Fourth Proportional to 5,178,124.80, 7,767,187.20 and 3,386,534.40

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Solution

The fourth proportional to 5,178,124.80, 7,767,187.20 and 3,386,534.40 is: 5,079,801.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,178,124.80 : 7,767,187.20 = 3,386,534.40 : x
  2. Step 2: Convert to fraction form
    5,178,124.80/7,767,187.20 = 3,386,534.40/x
  3. Step 3: Cross multiply
    5,178,124.80x = 7,767,187.20 × 3,386,534.40
  4. Step 4: Simplify right side
    5,178,124.80x = 26,303,846,644,039.68
  5. Step 5: Solve for x
    x = 26,303,846,644,039.68/5,178,124.80
  6. Step 6: Final answer
    x = 5,079,801.60

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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.