Home / 402,034,987.40-603,052,481.10-361,220,318.60

Finding the Fourth Proportional to 402,034,987.40, 603,052,481.10 and 361,220,318.60

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Solution

The fourth proportional to 402,034,987.40, 603,052,481.10 and 361,220,318.60 is: 541,830,477.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,034,987.40 : 603,052,481.10 = 361,220,318.60 : x
  2. Step 2: Convert to fraction form
    402,034,987.40/603,052,481.10 = 361,220,318.60/x
  3. Step 3: Cross multiply
    402,034,987.40x = 603,052,481.10 × 361,220,318.60
  4. Step 4: Simplify right side
    402,034,987.40x = 217,834,809,355,462,496
  5. Step 5: Solve for x
    x = 217,834,809,355,462,496/402,034,987.40
  6. Step 6: Final answer
    x = 541,830,477.90

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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.