Home / 653,232,781.20-979,828,176.60-216,553,616.40

Finding the Fourth Proportional to 653,232,781.20, 979,828,176.60 and 216,553,616.40

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Solution

The fourth proportional to 653,232,781.20, 979,828,176.60 and 216,553,616.40 is: 324,823,464.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,232,781.20 : 979,828,176.60 = 216,553,616.40 : x
  2. Step 2: Convert to fraction form
    653,232,781.20/979,828,176.60 = 216,553,616.40/x
  3. Step 3: Cross multiply
    653,232,781.20x = 979,828,176.60 × 216,553,616.40
  4. Step 4: Simplify right side
    653,232,781.20x = 212,185,335,093,347,872
  5. Step 5: Solve for x
    x = 212,185,335,093,347,872/653,232,781.20
  6. Step 6: Final answer
    x = 324,823,464.47

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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.