Home / 115,880,261.15-159,875,209.34-71,811,180.53

Finding the Fourth Proportional to 115,880,261.15, 159,875,209.34 and 71,811,180.53

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Solution

The fourth proportional to 115,880,261.15, 159,875,209.34 and 71,811,180.53 is: 99,074,919.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,880,261.15 : 159,875,209.34 = 71,811,180.53 : x
  2. Step 2: Convert to fraction form
    115,880,261.15/159,875,209.34 = 71,811,180.53/x
  3. Step 3: Cross multiply
    115,880,261.15x = 159,875,209.34 × 71,811,180.53
  4. Step 4: Simplify right side
    115,880,261.15x = 11,480,827,519,027,852
  5. Step 5: Solve for x
    x = 11,480,827,519,027,852/115,880,261.15
  6. Step 6: Final answer
    x = 99,074,919.27

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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.