Home / 3,178,631.16-4,386,565.83-1,728,336.39

Finding the Fourth Proportional to 3,178,631.16, 4,386,565.83 and 1,728,336.39

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Solution

The fourth proportional to 3,178,631.16, 4,386,565.83 and 1,728,336.39 is: 2,385,134.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178,631.16 : 4,386,565.83 = 1,728,336.39 : x
  2. Step 2: Convert to fraction form
    3,178,631.16/4,386,565.83 = 1,728,336.39/x
  3. Step 3: Cross multiply
    3,178,631.16x = 4,386,565.83 × 1,728,336.39
  4. Step 4: Simplify right side
    3,178,631.16x = 7,581,461,351,119.55
  5. Step 5: Solve for x
    x = 7,581,461,351,119.55/3,178,631.16
  6. Step 6: Final answer
    x = 2,385,134.03

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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.