Home / 399,965,805.41-599,888,088.54-108,855,613.22

Finding the Fourth Proportional to 399,965,805.41, 599,888,088.54 and 108,855,613.22

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Solution

The fourth proportional to 399,965,805.41, 599,888,088.54 and 108,855,613.22 is: 163,266,921.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,965,805.41 : 599,888,088.54 = 108,855,613.22 : x
  2. Step 2: Convert to fraction form
    399,965,805.41/599,888,088.54 = 108,855,613.22/x
  3. Step 3: Cross multiply
    399,965,805.41x = 599,888,088.54 × 108,855,613.22
  4. Step 4: Simplify right side
    399,965,805.41x = 65,301,185,738,395,912
  5. Step 5: Solve for x
    x = 65,301,185,738,395,912/399,965,805.41
  6. Step 6: Final answer
    x = 163,266,921.46

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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.