Home / 291,376,131.62-402,100,106.83-159,217,125.40

Finding the Fourth Proportional to 291,376,131.62, 402,100,106.83 and 159,217,125.40

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Solution

The fourth proportional to 291,376,131.62, 402,100,106.83 and 159,217,125.40 is: 219,720,204.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,376,131.62 : 402,100,106.83 = 159,217,125.40 : x
  2. Step 2: Convert to fraction form
    291,376,131.62/402,100,106.83 = 159,217,125.40/x
  3. Step 3: Cross multiply
    291,376,131.62x = 402,100,106.83 × 159,217,125.40
  4. Step 4: Simplify right side
    291,376,131.62x = 64,021,223,132,505,504
  5. Step 5: Solve for x
    x = 64,021,223,132,505,504/291,376,131.62
  6. Step 6: Final answer
    x = 219,720,204.18

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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.