Home / 209,189,468-288,667,818.96-116,366,656.16

Finding the Fourth Proportional to 209,189,468, 288,667,818.96 and 116,366,656.16

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Solution

The fourth proportional to 209,189,468, 288,667,818.96 and 116,366,656.16 is: 160,578,394.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,189,468 : 288,667,818.96 = 116,366,656.16 : x
  2. Step 2: Convert to fraction form
    209,189,468/288,667,818.96 = 116,366,656.16/x
  3. Step 3: Cross multiply
    209,189,468x = 288,667,818.96 × 116,366,656.16
  4. Step 4: Simplify right side
    209,189,468x = 33,591,308,833,375,444
  5. Step 5: Solve for x
    x = 33,591,308,833,375,444/209,189,468
  6. Step 6: Final answer
    x = 160,578,394.10

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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.