Home / 330,086,363.40-495,129,545.10-213,860,216.70

Finding the Fourth Proportional to 330,086,363.40, 495,129,545.10 and 213,860,216.70

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Solution

The fourth proportional to 330,086,363.40, 495,129,545.10 and 213,860,216.70 is: 320,790,325.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,086,363.40 : 495,129,545.10 = 213,860,216.70 : x
  2. Step 2: Convert to fraction form
    330,086,363.40/495,129,545.10 = 213,860,216.70/x
  3. Step 3: Cross multiply
    330,086,363.40x = 495,129,545.10 × 213,860,216.70
  4. Step 4: Simplify right side
    330,086,363.40x = 105,888,511,809,658,416
  5. Step 5: Solve for x
    x = 105,888,511,809,658,416/330,086,363.40
  6. Step 6: Final answer
    x = 320,790,325.05

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1.5x scale

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.