Home / 290,030,249.94-435,041,112.28-71,680,610.79

Finding the Fourth Proportional to 290,030,249.94, 435,041,112.28 and 71,680,610.79

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Solution

The fourth proportional to 290,030,249.94, 435,041,112.28 and 71,680,610.79 is: 107,519,862.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,030,249.94 : 435,041,112.28 = 71,680,610.79 : x
  2. Step 2: Convert to fraction form
    290,030,249.94/435,041,112.28 = 71,680,610.79/x
  3. Step 3: Cross multiply
    290,030,249.94x = 435,041,112.28 × 71,680,610.79
  4. Step 4: Simplify right side
    290,030,249.94x = 31,184,012,646,991,372
  5. Step 5: Solve for x
    x = 31,184,012,646,991,372/290,030,249.94
  6. Step 6: Final answer
    x = 107,519,862.68

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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.