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Finding the Third Proportional to 287,891,104.50 and 621,656,332.88

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Solution

The third proportional to 287,891,104.50 and 621,656,332.88 is: 1,342,370,744.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,891,104.50 : 621,656,332.88 = 621,656,332.88 : x
  2. Step 2: Convert to fraction form
    287,891,104.50/621,656,332.88 = 621,656,332.88/x
  3. Step 3: Cross multiply
    287,891,104.50x = 621,656,332.88 × 621,656,332.88
  4. Step 4: Simplify right side
    287,891,104.50x = 386,456,596,203,592,832
  5. Step 5: Solve for x
    x = 386,456,596,203,592,832/287,891,104.50
  6. Step 6: Final answer
    x = 1,342,370,744.23

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.