Home / 464,058,921.29-640,388,531.86-255,215,139.80

Finding the Fourth Proportional to 464,058,921.29, 640,388,531.86 and 255,215,139.80

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Solution

The fourth proportional to 464,058,921.29, 640,388,531.86 and 255,215,139.80 is: 352,189,864.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,058,921.29 : 640,388,531.86 = 255,215,139.80 : x
  2. Step 2: Convert to fraction form
    464,058,921.29/640,388,531.86 = 255,215,139.80/x
  3. Step 3: Cross multiply
    464,058,921.29x = 640,388,531.86 × 255,215,139.80
  4. Step 4: Simplify right side
    464,058,921.29x = 163,436,848,681,126,656
  5. Step 5: Solve for x
    x = 163,436,848,681,126,656/464,058,921.29
  6. Step 6: Final answer
    x = 352,189,864.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.