Home / 298,722,819.20-447,907,281.60-155,395,587.20

Finding the Fourth Proportional to 298,722,819.20, 447,907,281.60 and 155,395,587.20

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Solution

The fourth proportional to 298,722,819.20, 447,907,281.60 and 155,395,587.20 is: 233,001,332.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,722,819.20 : 447,907,281.60 = 155,395,587.20 : x
  2. Step 2: Convert to fraction form
    298,722,819.20/447,907,281.60 = 155,395,587.20/x
  3. Step 3: Cross multiply
    298,722,819.20x = 447,907,281.60 × 155,395,587.20
  4. Step 4: Simplify right side
    298,722,819.20x = 69,602,815,035,387,752
  5. Step 5: Solve for x
    x = 69,602,815,035,387,752/298,722,819.20
  6. Step 6: Final answer
    x = 233,001,332.88

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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.