Home / 647,382,639.18-970,656,444.01-253,949,218.87

Finding the Fourth Proportional to 647,382,639.18, 970,656,444.01 and 253,949,218.87

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Solution

The fourth proportional to 647,382,639.18, 970,656,444.01 and 253,949,218.87 is: 380,760,049.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,382,639.18 : 970,656,444.01 = 253,949,218.87 : x
  2. Step 2: Convert to fraction form
    647,382,639.18/970,656,444.01 = 253,949,218.87/x
  3. Step 3: Cross multiply
    647,382,639.18x = 970,656,444.01 × 253,949,218.87
  4. Step 4: Simplify right side
    647,382,639.18x = 246,497,445,744,409,888
  5. Step 5: Solve for x
    x = 246,497,445,744,409,888/647,382,639.18
  6. Step 6: Final answer
    x = 380,760,049.51

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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.