Home / 209,331,158.54-288,871,718.95-115,244,366.16

Finding the Fourth Proportional to 209,331,158.54, 288,871,718.95 and 115,244,366.16

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Solution

The fourth proportional to 209,331,158.54, 288,871,718.95 and 115,244,366.16 is: 159,034,318.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,331,158.54 : 288,871,718.95 = 115,244,366.16 : x
  2. Step 2: Convert to fraction form
    209,331,158.54/288,871,718.95 = 115,244,366.16/x
  3. Step 3: Cross multiply
    209,331,158.54x = 288,871,718.95 × 115,244,366.16
  4. Step 4: Simplify right side
    209,331,158.54x = 33,290,838,153,169,736
  5. Step 5: Solve for x
    x = 33,290,838,153,169,736/209,331,158.54
  6. Step 6: Final answer
    x = 159,034,318.57

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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.