Home / 386,491,243.68-580,100,085.72-202,390,860.24

Finding the Fourth Proportional to 386,491,243.68, 580,100,085.72 and 202,390,860.24

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Solution

The fourth proportional to 386,491,243.68, 580,100,085.72 and 202,390,860.24 is: 303,776,495.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,491,243.68 : 580,100,085.72 = 202,390,860.24 : x
  2. Step 2: Convert to fraction form
    386,491,243.68/580,100,085.72 = 202,390,860.24/x
  3. Step 3: Cross multiply
    386,491,243.68x = 580,100,085.72 × 202,390,860.24
  4. Step 4: Simplify right side
    386,491,243.68x = 117,406,955,374,168,544
  5. Step 5: Solve for x
    x = 117,406,955,374,168,544/386,491,243.68
  6. Step 6: Final answer
    x = 303,776,495.05

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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.