Home / 1,057,104,002.20-1,585,656,003.30-781,604,987.80

Finding the Fourth Proportional to 1,057,104,002.20, 1,585,656,003.30 and 781,604,987.80

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Solution

The fourth proportional to 1,057,104,002.20, 1,585,656,003.30 and 781,604,987.80 is: 1,172,407,481.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,057,104,002.20 : 1,585,656,003.30 = 781,604,987.80 : x
  2. Step 2: Convert to fraction form
    1,057,104,002.20/1,585,656,003.30 = 781,604,987.80/x
  3. Step 3: Cross multiply
    1,057,104,002.20x = 1,585,656,003.30 × 781,604,987.80
  4. Step 4: Simplify right side
    1,057,104,002.20x = 1,239,356,641,114,293,248
  5. Step 5: Solve for x
    x = 1,239,356,641,114,293,248/1,057,104,002.20
  6. Step 6: Final answer
    x = 1,172,407,481.70

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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.