Home / 420,728,437.48-580,627,671.78-235,093,959.40

Finding the Fourth Proportional to 420,728,437.48, 580,627,671.78 and 235,093,959.40

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Solution

The fourth proportional to 420,728,437.48, 580,627,671.78 and 235,093,959.40 is: 324,442,196.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,728,437.48 : 580,627,671.78 = 235,093,959.40 : x
  2. Step 2: Convert to fraction form
    420,728,437.48/580,627,671.78 = 235,093,959.40/x
  3. Step 3: Cross multiply
    420,728,437.48x = 580,627,671.78 × 235,093,959.40
  4. Step 4: Simplify right side
    420,728,437.48x = 136,502,058,295,963,840
  5. Step 5: Solve for x
    x = 136,502,058,295,963,840/420,728,437.48
  6. Step 6: Final answer
    x = 324,442,196.29

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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.