Home / 165,888,834.30-248,833,251.45-85,117,967.10

Finding the Fourth Proportional to 165,888,834.30, 248,833,251.45 and 85,117,967.10

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Solution

The fourth proportional to 165,888,834.30, 248,833,251.45 and 85,117,967.10 is: 127,676,950.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,888,834.30 : 248,833,251.45 = 85,117,967.10 : x
  2. Step 2: Convert to fraction form
    165,888,834.30/248,833,251.45 = 85,117,967.10/x
  3. Step 3: Cross multiply
    165,888,834.30x = 248,833,251.45 × 85,117,967.10
  4. Step 4: Simplify right side
    165,888,834.30x = 21,180,180,510,307,124
  5. Step 5: Solve for x
    x = 21,180,180,510,307,124/165,888,834.30
  6. Step 6: Final answer
    x = 127,676,950.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.