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Finding the Fourth Proportional to 272,573,189.60, 408,859,784.40 and 245,363,410.40

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Solution

The fourth proportional to 272,573,189.60, 408,859,784.40 and 245,363,410.40 is: 368,045,115.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,573,189.60 : 408,859,784.40 = 245,363,410.40 : x
  2. Step 2: Convert to fraction form
    272,573,189.60/408,859,784.40 = 245,363,410.40/x
  3. Step 3: Cross multiply
    272,573,189.60x = 408,859,784.40 × 245,363,410.40
  4. Step 4: Simplify right side
    272,573,189.60x = 100,319,231,075,792,720
  5. Step 5: Solve for x
    x = 100,319,231,075,792,720/272,573,189.60
  6. Step 6: Final answer
    x = 368,045,115.60

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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.