Home / 5,212,223.40-7,192,863.48-2,920,400.50

Finding the Fourth Proportional to 5,212,223.40, 7,192,863.48 and 2,920,400.50

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Solution

The fourth proportional to 5,212,223.40, 7,192,863.48 and 2,920,400.50 is: 4,030,149.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,212,223.40 : 7,192,863.48 = 2,920,400.50 : x
  2. Step 2: Convert to fraction form
    5,212,223.40/7,192,863.48 = 2,920,400.50/x
  3. Step 3: Cross multiply
    5,212,223.40x = 7,192,863.48 × 2,920,400.50
  4. Step 4: Simplify right side
    5,212,223.40x = 21,006,042,103,423.74
  5. Step 5: Solve for x
    x = 21,006,042,103,423.74/5,212,223.40
  6. Step 6: Final answer
    x = 4,030,149.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.