Home / 209,422,851.25-289,000,008.51-115,345,758.92

Finding the Fourth Proportional to 209,422,851.25, 289,000,008.51 and 115,345,758.92

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Solution

The fourth proportional to 209,422,851.25, 289,000,008.51 and 115,345,758.92 is: 159,175,205.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,422,851.25 : 289,000,008.51 = 115,345,758.92 : x
  2. Step 2: Convert to fraction form
    209,422,851.25/289,000,008.51 = 115,345,758.92/x
  3. Step 3: Cross multiply
    209,422,851.25x = 289,000,008.51 × 115,345,758.92
  4. Step 4: Simplify right side
    209,422,851.25x = 33,334,925,308,569,536
  5. Step 5: Solve for x
    x = 33,334,925,308,569,536/209,422,851.25
  6. Step 6: Final answer
    x = 159,175,205.14

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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.