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Finding the Fourth Proportional to 398,604,839.70, 597,907,259.55 and 295,292,709.30

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Solution

The fourth proportional to 398,604,839.70, 597,907,259.55 and 295,292,709.30 is: 442,939,063.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,604,839.70 : 597,907,259.55 = 295,292,709.30 : x
  2. Step 2: Convert to fraction form
    398,604,839.70/597,907,259.55 = 295,292,709.30/x
  3. Step 3: Cross multiply
    398,604,839.70x = 597,907,259.55 × 295,292,709.30
  4. Step 4: Simplify right side
    398,604,839.70x = 176,557,654,582,657,792
  5. Step 5: Solve for x
    x = 176,557,654,582,657,792/398,604,839.70
  6. Step 6: Final answer
    x = 442,939,063.95

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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.