Home / 643,258,304.64-962,452,543.86-381,083,568.57

Finding the Fourth Proportional to 643,258,304.64, 962,452,543.86 and 381,083,568.57

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Solution

The fourth proportional to 643,258,304.64, 962,452,543.86 and 381,083,568.57 is: 570,182,844.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,258,304.64 : 962,452,543.86 = 381,083,568.57 : x
  2. Step 2: Convert to fraction form
    643,258,304.64/962,452,543.86 = 381,083,568.57/x
  3. Step 3: Cross multiply
    643,258,304.64x = 962,452,543.86 × 381,083,568.57
  4. Step 4: Simplify right side
    643,258,304.64x = 366,774,849,993,443,264
  5. Step 5: Solve for x
    x = 366,774,849,993,443,264/643,258,304.64
  6. Step 6: Final answer
    x = 570,182,844.66

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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.