Home / 221,433,962.40-332,150,943.60-217,607,587.20

Finding the Fourth Proportional to 221,433,962.40, 332,150,943.60 and 217,607,587.20

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Solution

The fourth proportional to 221,433,962.40, 332,150,943.60 and 217,607,587.20 is: 326,411,380.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,433,962.40 : 332,150,943.60 = 217,607,587.20 : x
  2. Step 2: Convert to fraction form
    221,433,962.40/332,150,943.60 = 217,607,587.20/x
  3. Step 3: Cross multiply
    221,433,962.40x = 332,150,943.60 × 217,607,587.20
  4. Step 4: Simplify right side
    221,433,962.40x = 72,278,565,422,999,280
  5. Step 5: Solve for x
    x = 72,278,565,422,999,280/221,433,962.40
  6. Step 6: Final answer
    x = 326,411,380.80

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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.