Home / 301,215,652.70-451,823,479.05-209,382,647.90

Finding the Fourth Proportional to 301,215,652.70, 451,823,479.05 and 209,382,647.90

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Solution

The fourth proportional to 301,215,652.70, 451,823,479.05 and 209,382,647.90 is: 314,073,971.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,215,652.70 : 451,823,479.05 = 209,382,647.90 : x
  2. Step 2: Convert to fraction form
    301,215,652.70/451,823,479.05 = 209,382,647.90/x
  3. Step 3: Cross multiply
    301,215,652.70x = 451,823,479.05 × 209,382,647.90
  4. Step 4: Simplify right side
    301,215,652.70x = 94,603,996,426,879,184
  5. Step 5: Solve for x
    x = 94,603,996,426,879,184/301,215,652.70
  6. Step 6: Final answer
    x = 314,073,971.85

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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.