Home / 710,134,620.57-980,016,041.79-396,868,825.62

Finding the Fourth Proportional to 710,134,620.57, 980,016,041.79 and 396,868,825.62

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Solution

The fourth proportional to 710,134,620.57, 980,016,041.79 and 396,868,825.62 is: 547,695,893.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,134,620.57 : 980,016,041.79 = 396,868,825.62 : x
  2. Step 2: Convert to fraction form
    710,134,620.57/980,016,041.79 = 396,868,825.62/x
  3. Step 3: Cross multiply
    710,134,620.57x = 980,016,041.79 × 396,868,825.62
  4. Step 4: Simplify right side
    710,134,620.57x = 388,937,815,593,958,144
  5. Step 5: Solve for x
    x = 388,937,815,593,958,144/710,134,620.57
  6. Step 6: Final answer
    x = 547,695,893.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.