Home / 168,043,752.90-252,065,629.35-157,840,085.70

Finding the Fourth Proportional to 168,043,752.90, 252,065,629.35 and 157,840,085.70

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Solution

The fourth proportional to 168,043,752.90, 252,065,629.35 and 157,840,085.70 is: 236,760,128.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,043,752.90 : 252,065,629.35 = 157,840,085.70 : x
  2. Step 2: Convert to fraction form
    168,043,752.90/252,065,629.35 = 157,840,085.70/x
  3. Step 3: Cross multiply
    168,043,752.90x = 252,065,629.35 × 157,840,085.70
  4. Step 4: Simplify right side
    168,043,752.90x = 39,786,060,538,628,432
  5. Step 5: Solve for x
    x = 39,786,060,538,628,432/168,043,752.90
  6. Step 6: Final answer
    x = 236,760,128.55

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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.