Home / 213,993,750.40-320,990,625.60-137,466,246.40

Finding the Fourth Proportional to 213,993,750.40, 320,990,625.60 and 137,466,246.40

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Solution

The fourth proportional to 213,993,750.40, 320,990,625.60 and 137,466,246.40 is: 206,199,369.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,993,750.40 : 320,990,625.60 = 137,466,246.40 : x
  2. Step 2: Convert to fraction form
    213,993,750.40/320,990,625.60 = 137,466,246.40/x
  3. Step 3: Cross multiply
    213,993,750.40x = 320,990,625.60 × 137,466,246.40
  4. Step 4: Simplify right side
    213,993,750.40x = 44,125,376,430,819,752
  5. Step 5: Solve for x
    x = 44,125,376,430,819,752/213,993,750.40
  6. Step 6: Final answer
    x = 206,199,369.60

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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.