Home / 51,761,945.30-71,430,991.90-28,557,259.70

Finding the Fourth Proportional to 51,761,945.30, 71,430,991.90 and 28,557,259.70

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Solution

The fourth proportional to 51,761,945.30, 71,430,991.90 and 28,557,259.70 is: 39,408,746.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,761,945.30 : 71,430,991.90 = 28,557,259.70 : x
  2. Step 2: Convert to fraction form
    51,761,945.30/71,430,991.90 = 28,557,259.70/x
  3. Step 3: Cross multiply
    51,761,945.30x = 71,430,991.90 × 28,557,259.70
  4. Step 4: Simplify right side
    51,761,945.30x = 2,039,873,385,888,348.25
  5. Step 5: Solve for x
    x = 2,039,873,385,888,348.25/51,761,945.30
  6. Step 6: Final answer
    x = 39,408,746.60

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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.