Home / 139,969,206.40-209,953,809.60-132,033,020.80

Finding the Fourth Proportional to 139,969,206.40, 209,953,809.60 and 132,033,020.80

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Solution

The fourth proportional to 139,969,206.40, 209,953,809.60 and 132,033,020.80 is: 198,049,531.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,969,206.40 : 209,953,809.60 = 132,033,020.80 : x
  2. Step 2: Convert to fraction form
    139,969,206.40/209,953,809.60 = 132,033,020.80/x
  3. Step 3: Cross multiply
    139,969,206.40x = 209,953,809.60 × 132,033,020.80
  4. Step 4: Simplify right side
    139,969,206.40x = 27,720,835,709,956,040
  5. Step 5: Solve for x
    x = 27,720,835,709,956,040/139,969,206.40
  6. Step 6: Final answer
    x = 198,049,531.20

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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.