Home / 751,248,002.10-1,126,872,003.15-205,988,661.30

Finding the Fourth Proportional to 751,248,002.10, 1,126,872,003.15 and 205,988,661.30

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Solution

The fourth proportional to 751,248,002.10, 1,126,872,003.15 and 205,988,661.30 is: 308,982,991.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,248,002.10 : 1,126,872,003.15 = 205,988,661.30 : x
  2. Step 2: Convert to fraction form
    751,248,002.10/1,126,872,003.15 = 205,988,661.30/x
  3. Step 3: Cross multiply
    751,248,002.10x = 1,126,872,003.15 × 205,988,661.30
  4. Step 4: Simplify right side
    751,248,002.10x = 232,122,855,385,317,920
  5. Step 5: Solve for x
    x = 232,122,855,385,317,920/751,248,002.10
  6. Step 6: Final answer
    x = 308,982,991.95

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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.