Home / 199,588,477.20-299,382,715.80-145,840,765.20

Finding the Fourth Proportional to 199,588,477.20, 299,382,715.80 and 145,840,765.20

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Solution

The fourth proportional to 199,588,477.20, 299,382,715.80 and 145,840,765.20 is: 218,761,147.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,588,477.20 : 299,382,715.80 = 145,840,765.20 : x
  2. Step 2: Convert to fraction form
    199,588,477.20/299,382,715.80 = 145,840,765.20/x
  3. Step 3: Cross multiply
    199,588,477.20x = 299,382,715.80 × 145,840,765.20
  4. Step 4: Simplify right side
    199,588,477.20x = 43,662,204,359,926,128
  5. Step 5: Solve for x
    x = 43,662,204,359,926,128/199,588,477.20
  6. Step 6: Final answer
    x = 218,761,147.80

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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.