Home / 487,155,999.20-730,733,998.80-383,843,868.80

Finding the Fourth Proportional to 487,155,999.20, 730,733,998.80 and 383,843,868.80

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Solution

The fourth proportional to 487,155,999.20, 730,733,998.80 and 383,843,868.80 is: 575,765,803.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,155,999.20 : 730,733,998.80 = 383,843,868.80 : x
  2. Step 2: Convert to fraction form
    487,155,999.20/730,733,998.80 = 383,843,868.80/x
  3. Step 3: Cross multiply
    487,155,999.20x = 730,733,998.80 × 383,843,868.80
  4. Step 4: Simplify right side
    487,155,999.20x = 280,487,765,163,086,560
  5. Step 5: Solve for x
    x = 280,487,765,163,086,560/487,155,999.20
  6. Step 6: Final answer
    x = 575,765,803.20

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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.