Home / 128,304,001.80-192,456,002.70-56,640,385.80

Finding the Fourth Proportional to 128,304,001.80, 192,456,002.70 and 56,640,385.80

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Solution

The fourth proportional to 128,304,001.80, 192,456,002.70 and 56,640,385.80 is: 84,960,578.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,304,001.80 : 192,456,002.70 = 56,640,385.80 : x
  2. Step 2: Convert to fraction form
    128,304,001.80/192,456,002.70 = 56,640,385.80/x
  3. Step 3: Cross multiply
    128,304,001.80x = 192,456,002.70 × 56,640,385.80
  4. Step 4: Simplify right side
    128,304,001.80x = 10,900,782,242,453,840
  5. Step 5: Solve for x
    x = 10,900,782,242,453,840/128,304,001.80
  6. Step 6: Final answer
    x = 84,960,578.70

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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.