Home / 476,846,876.80-714,703,444.80-428,096,022.40

Finding the Fourth Proportional to 476,846,876.80, 714,703,444.80 and 428,096,022.40

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Solution

The fourth proportional to 476,846,876.80, 714,703,444.80 and 428,096,022.40 is: 641,635,117.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,846,876.80 : 714,703,444.80 = 428,096,022.40 : x
  2. Step 2: Convert to fraction form
    476,846,876.80/714,703,444.80 = 428,096,022.40/x
  3. Step 3: Cross multiply
    476,846,876.80x = 714,703,444.80 × 428,096,022.40
  4. Step 4: Simplify right side
    476,846,876.80x = 305,961,701,914,457,920
  5. Step 5: Solve for x
    x = 305,961,701,914,457,920/476,846,876.80
  6. Step 6: Final answer
    x = 641,635,117.69

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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.