Home / 165,888,862.40-248,957,709.60-85,068,228.80

Finding the Fourth Proportional to 165,888,862.40, 248,957,709.60 and 85,068,228.80

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Solution

The fourth proportional to 165,888,862.40, 248,957,709.60 and 85,068,228.80 is: 127,666,144.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,888,862.40 : 248,957,709.60 = 85,068,228.80 : x
  2. Step 2: Convert to fraction form
    165,888,862.40/248,957,709.60 = 85,068,228.80/x
  3. Step 3: Cross multiply
    165,888,862.40x = 248,957,709.60 × 85,068,228.80
  4. Step 4: Simplify right side
    165,888,862.40x = 21,178,391,401,776,756
  5. Step 5: Solve for x
    x = 21,178,391,401,776,756/165,888,862.40
  6. Step 6: Final answer
    x = 127,666,144.04

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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.