Home / 715,678,833.40-1,073,398,664.88-198,161,587.60

Finding the Fourth Proportional to 715,678,833.40, 1,073,398,664.88 and 198,161,587.60

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Solution

The fourth proportional to 715,678,833.40, 1,073,398,664.88 and 198,161,587.60 is: 297,209,269.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,678,833.40 : 1,073,398,664.88 = 198,161,587.60 : x
  2. Step 2: Convert to fraction form
    715,678,833.40/1,073,398,664.88 = 198,161,587.60/x
  3. Step 3: Cross multiply
    715,678,833.40x = 1,073,398,664.88 × 198,161,587.60
  4. Step 4: Simplify right side
    715,678,833.40x = 212,706,383,560,341,152
  5. Step 5: Solve for x
    x = 212,706,383,560,341,152/715,678,833.40
  6. Step 6: Final answer
    x = 297,209,269.90

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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.