Home / 489,904,279.20-733,155,807.60-449,089,610.40

Finding the Fourth Proportional to 489,904,279.20, 733,155,807.60 and 449,089,610.40

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Solution

The fourth proportional to 489,904,279.20, 733,155,807.60 and 449,089,610.40 is: 672,075,484.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,904,279.20 : 733,155,807.60 = 449,089,610.40 : x
  2. Step 2: Convert to fraction form
    489,904,279.20/733,155,807.60 = 449,089,610.40/x
  3. Step 3: Cross multiply
    489,904,279.20x = 733,155,807.60 × 449,089,610.40
  4. Step 4: Simplify right side
    489,904,279.20x = 329,252,655,997,581,376
  5. Step 5: Solve for x
    x = 329,252,655,997,581,376/489,904,279.20
  6. Step 6: Final answer
    x = 672,075,484.90

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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.