Home / 817,665,217.20-1,226,497,825.80-326,454,300.90

Finding the Fourth Proportional to 817,665,217.20, 1,226,497,825.80 and 326,454,300.90

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Solution

The fourth proportional to 817,665,217.20, 1,226,497,825.80 and 326,454,300.90 is: 489,681,451.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,665,217.20 : 1,226,497,825.80 = 326,454,300.90 : x
  2. Step 2: Convert to fraction form
    817,665,217.20/1,226,497,825.80 = 326,454,300.90/x
  3. Step 3: Cross multiply
    817,665,217.20x = 1,226,497,825.80 × 326,454,300.90
  4. Step 4: Simplify right side
    817,665,217.20x = 400,395,490,276,908,928
  5. Step 5: Solve for x
    x = 400,395,490,276,908,928/817,665,217.20
  6. Step 6: Final answer
    x = 489,681,451.35

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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.