Home / 112,289,723.20-168,434,584.80-64,513,979.20

Finding the Fourth Proportional to 112,289,723.20, 168,434,584.80 and 64,513,979.20

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Solution

The fourth proportional to 112,289,723.20, 168,434,584.80 and 64,513,979.20 is: 96,770,968.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,289,723.20 : 168,434,584.80 = 64,513,979.20 : x
  2. Step 2: Convert to fraction form
    112,289,723.20/168,434,584.80 = 64,513,979.20/x
  3. Step 3: Cross multiply
    112,289,723.20x = 168,434,584.80 × 64,513,979.20
  4. Step 4: Simplify right side
    112,289,723.20x = 10,866,385,300,347,838
  5. Step 5: Solve for x
    x = 10,866,385,300,347,838/112,289,723.20
  6. Step 6: Final answer
    x = 96,770,968.80

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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.