Home / 301,214,911.20-451,822,366.80-209,381,906.40

Finding the Fourth Proportional to 301,214,911.20, 451,822,366.80 and 209,381,906.40

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Solution

The fourth proportional to 301,214,911.20, 451,822,366.80 and 209,381,906.40 is: 314,072,859.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,214,911.20 : 451,822,366.80 = 209,381,906.40 : x
  2. Step 2: Convert to fraction form
    301,214,911.20/451,822,366.80 = 209,381,906.40/x
  3. Step 3: Cross multiply
    301,214,911.20x = 451,822,366.80 × 209,381,906.40
  4. Step 4: Simplify right side
    301,214,911.20x = 94,603,428,514,744,080
  5. Step 5: Solve for x
    x = 94,603,428,514,744,080/301,214,911.20
  6. Step 6: Final answer
    x = 314,072,859.60

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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.