Home / 806,339,981.60-1,209,733,921.20-346,498,445.60

Finding the Fourth Proportional to 806,339,981.60, 1,209,733,921.20 and 346,498,445.60

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Solution

The fourth proportional to 806,339,981.60, 1,209,733,921.20 and 346,498,445.60 is: 519,843,903.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,339,981.60 : 1,209,733,921.20 = 346,498,445.60 : x
  2. Step 2: Convert to fraction form
    806,339,981.60/1,209,733,921.20 = 346,498,445.60/x
  3. Step 3: Cross multiply
    806,339,981.60x = 1,209,733,921.20 × 346,498,445.60
  4. Step 4: Simplify right side
    806,339,981.60x = 419,170,923,285,392,960
  5. Step 5: Solve for x
    x = 419,170,923,285,392,960/806,339,981.60
  6. Step 6: Final answer
    x = 519,843,903.13

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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.