Home / 693,697,961.72-1,040,445,655.32-202,279,178.36

Finding the Fourth Proportional to 693,697,961.72, 1,040,445,655.32 and 202,279,178.36

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Solution

The fourth proportional to 693,697,961.72, 1,040,445,655.32 and 202,279,178.36 is: 303,389,232.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,697,961.72 : 1,040,445,655.32 = 202,279,178.36 : x
  2. Step 2: Convert to fraction form
    693,697,961.72/1,040,445,655.32 = 202,279,178.36/x
  3. Step 3: Cross multiply
    693,697,961.72x = 1,040,445,655.32 × 202,279,178.36
  4. Step 4: Simplify right side
    693,697,961.72x = 210,460,492,286,361,376
  5. Step 5: Solve for x
    x = 210,460,492,286,361,376/693,697,961.72
  6. Step 6: Final answer
    x = 303,389,232.63

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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.