Home / 142,406,927.87-213,642,606.33-45,368,163.23

Finding the Fourth Proportional to 142,406,927.87, 213,642,606.33 and 45,368,163.23

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Solution

The fourth proportional to 142,406,927.87, 213,642,606.33 and 45,368,163.23 is: 68,062,507.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,406,927.87 : 213,642,606.33 = 45,368,163.23 : x
  2. Step 2: Convert to fraction form
    142,406,927.87/213,642,606.33 = 45,368,163.23/x
  3. Step 3: Cross multiply
    142,406,927.87x = 213,642,606.33 × 45,368,163.23
  4. Step 4: Simplify right side
    142,406,927.87x = 9,692,572,635,793,860
  5. Step 5: Solve for x
    x = 9,692,572,635,793,860/142,406,927.87
  6. Step 6: Final answer
    x = 68,062,507.78

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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.