Home / 710,134,562-980,015,960.74-396,868,766.76

Finding the Fourth Proportional to 710,134,562, 980,015,960.74 and 396,868,766.76

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Solution

The fourth proportional to 710,134,562, 980,015,960.74 and 396,868,766.76 is: 547,695,812.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,134,562 : 980,015,960.74 = 396,868,766.76 : x
  2. Step 2: Convert to fraction form
    710,134,562/980,015,960.74 = 396,868,766.76/x
  3. Step 3: Cross multiply
    710,134,562x = 980,015,960.74 × 396,868,766.76
  4. Step 4: Simplify right side
    710,134,562x = 388,937,725,744,000,384
  5. Step 5: Solve for x
    x = 388,937,725,744,000,384/710,134,562
  6. Step 6: Final answer
    x = 547,695,812.25

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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.