Home / 1,119,744,009.20-1,679,616,013.80-343,383,503.60

Finding the Fourth Proportional to 1,119,744,009.20, 1,679,616,013.80 and 343,383,503.60

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Solution

The fourth proportional to 1,119,744,009.20, 1,679,616,013.80 and 343,383,503.60 is: 515,075,255.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,744,009.20 : 1,679,616,013.80 = 343,383,503.60 : x
  2. Step 2: Convert to fraction form
    1,119,744,009.20/1,679,616,013.80 = 343,383,503.60/x
  3. Step 3: Cross multiply
    1,119,744,009.20x = 1,679,616,013.80 × 343,383,503.60
  4. Step 4: Simplify right side
    1,119,744,009.20x = 576,752,431,521,309,952
  5. Step 5: Solve for x
    x = 576,752,431,521,309,952/1,119,744,009.20
  6. Step 6: Final answer
    x = 515,075,255.40

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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.