Home / 839,970,001.80-1,259,955,002.70-355,295,809.80

Finding the Fourth Proportional to 839,970,001.80, 1,259,955,002.70 and 355,295,809.80

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Solution

The fourth proportional to 839,970,001.80, 1,259,955,002.70 and 355,295,809.80 is: 532,943,714.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,970,001.80 : 1,259,955,002.70 = 355,295,809.80 : x
  2. Step 2: Convert to fraction form
    839,970,001.80/1,259,955,002.70 = 355,295,809.80/x
  3. Step 3: Cross multiply
    839,970,001.80x = 1,259,955,002.70 × 355,295,809.80
  4. Step 4: Simplify right side
    839,970,001.80x = 447,656,732,995,857,728
  5. Step 5: Solve for x
    x = 447,656,732,995,857,728/839,970,001.80
  6. Step 6: Final answer
    x = 532,943,714.70

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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.