Home / 138,247,998.23-190,785,049.95-75,528,158.55

Finding the Fourth Proportional to 138,247,998.23, 190,785,049.95 and 75,528,158.55

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Solution

The fourth proportional to 138,247,998.23, 190,785,049.95 and 75,528,158.55 is: 104,230,395.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,247,998.23 : 190,785,049.95 = 75,528,158.55 : x
  2. Step 2: Convert to fraction form
    138,247,998.23/190,785,049.95 = 75,528,158.55/x
  3. Step 3: Cross multiply
    138,247,998.23x = 190,785,049.95 × 75,528,158.55
  4. Step 4: Simplify right side
    138,247,998.23x = 14,409,643,501,161,058
  5. Step 5: Solve for x
    x = 14,409,643,501,161,058/138,247,998.23
  6. Step 6: Final answer
    x = 104,230,395.27

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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.