Home / 142,226,868.71-213,340,385.48-39,990,906.33

Finding the Fourth Proportional to 142,226,868.71, 213,340,385.48 and 39,990,906.33

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Solution

The fourth proportional to 142,226,868.71, 213,340,385.48 and 39,990,906.33 is: 59,986,382.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,226,868.71 : 213,340,385.48 = 39,990,906.33 : x
  2. Step 2: Convert to fraction form
    142,226,868.71/213,340,385.48 = 39,990,906.33/x
  3. Step 3: Cross multiply
    142,226,868.71x = 213,340,385.48 × 39,990,906.33
  4. Step 4: Simplify right side
    142,226,868.71x = 8,531,675,372,136,771
  5. Step 5: Solve for x
    x = 8,531,675,372,136,771/142,226,868.71
  6. Step 6: Final answer
    x = 59,986,382.67

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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.