Home / 478,568,691.70-660,427,673.60-266,888,886.24

Finding the Fourth Proportional to 478,568,691.70, 660,427,673.60 and 266,888,886.24

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Solution

The fourth proportional to 478,568,691.70, 660,427,673.60 and 266,888,886.24 is: 368,308,268.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,568,691.70 : 660,427,673.60 = 266,888,886.24 : x
  2. Step 2: Convert to fraction form
    478,568,691.70/660,427,673.60 = 266,888,886.24/x
  3. Step 3: Cross multiply
    478,568,691.70x = 660,427,673.60 × 266,888,886.24
  4. Step 4: Simplify right side
    478,568,691.70x = 176,260,806,249,178,272
  5. Step 5: Solve for x
    x = 176,260,806,249,178,272/478,568,691.70
  6. Step 6: Final answer
    x = 368,308,268.61

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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.