Home / 170,720,479.19-256,080,338.75-131,915,357.21

Finding the Fourth Proportional to 170,720,479.19, 256,080,338.75 and 131,915,357.21

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Solution

The fourth proportional to 170,720,479.19, 256,080,338.75 and 131,915,357.21 is: 197,872,742.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,720,479.19 : 256,080,338.75 = 131,915,357.21 : x
  2. Step 2: Convert to fraction form
    170,720,479.19/256,080,338.75 = 131,915,357.21/x
  3. Step 3: Cross multiply
    170,720,479.19x = 256,080,338.75 × 131,915,357.21
  4. Step 4: Simplify right side
    170,720,479.19x = 33,780,929,359,713,440
  5. Step 5: Solve for x
    x = 33,780,929,359,713,440/170,720,479.19
  6. Step 6: Final answer
    x = 197,872,742.16

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1.5x scale

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.