Home / 272,804,763.20-409,207,144.80-163,965,646.40

Finding the Fourth Proportional to 272,804,763.20, 409,207,144.80 and 163,965,646.40

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Solution

The fourth proportional to 272,804,763.20, 409,207,144.80 and 163,965,646.40 is: 245,948,469.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,804,763.20 : 409,207,144.80 = 163,965,646.40 : x
  2. Step 2: Convert to fraction form
    272,804,763.20/409,207,144.80 = 163,965,646.40/x
  3. Step 3: Cross multiply
    272,804,763.20x = 409,207,144.80 × 163,965,646.40
  4. Step 4: Simplify right side
    272,804,763.20x = 67,095,914,008,630,400
  5. Step 5: Solve for x
    x = 67,095,914,008,630,400/272,804,763.20
  6. Step 6: Final answer
    x = 245,948,469.60

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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.