Home / 135,015,038.72-186,321,648.02-73,135,377.28

Finding the Fourth Proportional to 135,015,038.72, 186,321,648.02 and 73,135,377.28

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Solution

The fourth proportional to 135,015,038.72, 186,321,648.02 and 73,135,377.28 is: 100,927,305.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,015,038.72 : 186,321,648.02 = 73,135,377.28 : x
  2. Step 2: Convert to fraction form
    135,015,038.72/186,321,648.02 = 73,135,377.28/x
  3. Step 3: Cross multiply
    135,015,038.72x = 186,321,648.02 × 73,135,377.28
  4. Step 4: Simplify right side
    135,015,038.72x = 13,626,704,023,374,066
  5. Step 5: Solve for x
    x = 13,626,704,023,374,066/135,015,038.72
  6. Step 6: Final answer
    x = 100,927,305.23

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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.