Home / 710,134,568.13-980,015,969.18-396,868,772.88

Finding the Fourth Proportional to 710,134,568.13, 980,015,969.18 and 396,868,772.88

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Solution

The fourth proportional to 710,134,568.13, 980,015,969.18 and 396,868,772.88 is: 547,695,820.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,134,568.13 : 980,015,969.18 = 396,868,772.88 : x
  2. Step 2: Convert to fraction form
    710,134,568.13/980,015,969.18 = 396,868,772.88/x
  3. Step 3: Cross multiply
    710,134,568.13x = 980,015,969.18 × 396,868,772.88
  4. Step 4: Simplify right side
    710,134,568.13x = 388,937,735,092,262,656
  5. Step 5: Solve for x
    x = 388,937,735,092,262,656/710,134,568.13
  6. Step 6: Final answer
    x = 547,695,820.69

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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.