Home / 200,954,742.75-301,431,270.65-78,218,651.57

Finding the Fourth Proportional to 200,954,742.75, 301,431,270.65 and 78,218,651.57

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Solution

The fourth proportional to 200,954,742.75, 301,431,270.65 and 78,218,651.57 is: 117,327,649.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,954,742.75 : 301,431,270.65 = 78,218,651.57 : x
  2. Step 2: Convert to fraction form
    200,954,742.75/301,431,270.65 = 78,218,651.57/x
  3. Step 3: Cross multiply
    200,954,742.75x = 301,431,270.65 × 78,218,651.57
  4. Step 4: Simplify right side
    200,954,742.75x = 23,577,547,529,376,464
  5. Step 5: Solve for x
    x = 23,577,547,529,376,464/200,954,742.75
  6. Step 6: Final answer
    x = 117,327,649.04

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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.