Home / 320,761,418.72-442,650,942-174,083,702.72

Finding the Fourth Proportional to 320,761,418.72, 442,650,942 and 174,083,702.72

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Solution

The fourth proportional to 320,761,418.72, 442,650,942 and 174,083,702.72 is: 240,235,609.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,761,418.72 : 442,650,942 = 174,083,702.72 : x
  2. Step 2: Convert to fraction form
    320,761,418.72/442,650,942 = 174,083,702.72/x
  3. Step 3: Cross multiply
    320,761,418.72x = 442,650,942 × 174,083,702.72
  4. Step 4: Simplify right side
    320,761,418.72x = 77,058,314,993,642,704
  5. Step 5: Solve for x
    x = 77,058,314,993,642,704/320,761,418.72
  6. Step 6: Final answer
    x = 240,235,609.70

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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.