Home / 298,722,644.20-447,907,019.10-155,395,412.20

Finding the Fourth Proportional to 298,722,644.20, 447,907,019.10 and 155,395,412.20

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Solution

The fourth proportional to 298,722,644.20, 447,907,019.10 and 155,395,412.20 is: 233,001,070.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,722,644.20 : 447,907,019.10 = 155,395,412.20 : x
  2. Step 2: Convert to fraction form
    298,722,644.20/447,907,019.10 = 155,395,412.20/x
  3. Step 3: Cross multiply
    298,722,644.20x = 447,907,019.10 × 155,395,412.20
  4. Step 4: Simplify right side
    298,722,644.20x = 69,602,695,860,317,768
  5. Step 5: Solve for x
    x = 69,602,695,860,317,768/298,722,644.20
  6. Step 6: Final answer
    x = 233,001,070.43

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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.