Home / 214,326,199.40-321,489,299.10-77,993,868.20

Finding the Fourth Proportional to 214,326,199.40, 321,489,299.10 and 77,993,868.20

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Solution

The fourth proportional to 214,326,199.40, 321,489,299.10 and 77,993,868.20 is: 116,990,802.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,326,199.40 : 321,489,299.10 = 77,993,868.20 : x
  2. Step 2: Convert to fraction form
    214,326,199.40/321,489,299.10 = 77,993,868.20/x
  3. Step 3: Cross multiply
    214,326,199.40x = 321,489,299.10 × 77,993,868.20
  4. Step 4: Simplify right side
    214,326,199.40x = 25,074,194,021,715,780
  5. Step 5: Solve for x
    x = 25,074,194,021,715,780/214,326,199.40
  6. Step 6: Final answer
    x = 116,990,802.30

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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.