Home / 1,387,058,536.31-2,080,587,764.25-639,853,234.40

Finding the Fourth Proportional to 1,387,058,536.31, 2,080,587,764.25 and 639,853,234.40

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Solution

The fourth proportional to 1,387,058,536.31, 2,080,587,764.25 and 639,853,234.40 is: 959,779,833.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,058,536.31 : 2,080,587,764.25 = 639,853,234.40 : x
  2. Step 2: Convert to fraction form
    1,387,058,536.31/2,080,587,764.25 = 639,853,234.40/x
  3. Step 3: Cross multiply
    1,387,058,536.31x = 2,080,587,764.25 × 639,853,234.40
  4. Step 4: Simplify right side
    1,387,058,536.31x = 1,331,270,810,407,803,136
  5. Step 5: Solve for x
    x = 1,331,270,810,407,803,136/1,387,058,536.31
  6. Step 6: Final answer
    x = 959,779,833.05

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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.