Home / 165,865,819.71-228,899,695.86-90,517,012.73

Finding the Fourth Proportional to 165,865,819.71, 228,899,695.86 and 90,517,012.73

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Solution

The fourth proportional to 165,865,819.71, 228,899,695.86 and 90,517,012.73 is: 124,916,132.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,865,819.71 : 228,899,695.86 = 90,517,012.73 : x
  2. Step 2: Convert to fraction form
    165,865,819.71/228,899,695.86 = 90,517,012.73/x
  3. Step 3: Cross multiply
    165,865,819.71x = 228,899,695.86 × 90,517,012.73
  4. Step 4: Simplify right side
    165,865,819.71x = 20,719,316,682,908,248
  5. Step 5: Solve for x
    x = 20,719,316,682,908,248/165,865,819.71
  6. Step 6: Final answer
    x = 124,916,132.32

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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.