Home / 806,711,704.80-1,210,067,557.20-531,212,690.40

Finding the Fourth Proportional to 806,711,704.80, 1,210,067,557.20 and 531,212,690.40

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Solution

The fourth proportional to 806,711,704.80, 1,210,067,557.20 and 531,212,690.40 is: 796,819,035.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,711,704.80 : 1,210,067,557.20 = 531,212,690.40 : x
  2. Step 2: Convert to fraction form
    806,711,704.80/1,210,067,557.20 = 531,212,690.40/x
  3. Step 3: Cross multiply
    806,711,704.80x = 1,210,067,557.20 × 531,212,690.40
  4. Step 4: Simplify right side
    806,711,704.80x = 642,803,242,625,967,872
  5. Step 5: Solve for x
    x = 642,803,242,625,967,872/806,711,704.80
  6. Step 6: Final answer
    x = 796,819,035.60

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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.