Home / 679,960,849.60-1,020,193,216.80-271,310,276.80

Finding the Fourth Proportional to 679,960,849.60, 1,020,193,216.80 and 271,310,276.80

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Solution

The fourth proportional to 679,960,849.60, 1,020,193,216.80 and 271,310,276.80 is: 407,065,942.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,960,849.60 : 1,020,193,216.80 = 271,310,276.80 : x
  2. Step 2: Convert to fraction form
    679,960,849.60/1,020,193,216.80 = 271,310,276.80/x
  3. Step 3: Cross multiply
    679,960,849.60x = 1,020,193,216.80 × 271,310,276.80
  4. Step 4: Simplify right side
    679,960,849.60x = 276,788,904,039,490,400
  5. Step 5: Solve for x
    x = 276,788,904,039,490,400/679,960,849.60
  6. Step 6: Final answer
    x = 407,065,942.40

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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.