Home / 209,331,056.12-288,871,577.46-115,244,264.01

Finding the Fourth Proportional to 209,331,056.12, 288,871,577.46 and 115,244,264.01

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Solution

The fourth proportional to 209,331,056.12, 288,871,577.46 and 115,244,264.01 is: 159,034,177.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,331,056.12 : 288,871,577.46 = 115,244,264.01 : x
  2. Step 2: Convert to fraction form
    209,331,056.12/288,871,577.46 = 115,244,264.01/x
  3. Step 3: Cross multiply
    209,331,056.12x = 288,871,577.46 × 115,244,264.01
  4. Step 4: Simplify right side
    209,331,056.12x = 33,290,792,337,785,404
  5. Step 5: Solve for x
    x = 33,290,792,337,785,404/209,331,056.12
  6. Step 6: Final answer
    x = 159,034,177.52

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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.