Home / 680,990,904.80-1,021,486,357.20-336,617,136.80

Finding the Fourth Proportional to 680,990,904.80, 1,021,486,357.20 and 336,617,136.80

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Solution

The fourth proportional to 680,990,904.80, 1,021,486,357.20 and 336,617,136.80 is: 504,925,705.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,990,904.80 : 1,021,486,357.20 = 336,617,136.80 : x
  2. Step 2: Convert to fraction form
    680,990,904.80/1,021,486,357.20 = 336,617,136.80/x
  3. Step 3: Cross multiply
    680,990,904.80x = 1,021,486,357.20 × 336,617,136.80
  4. Step 4: Simplify right side
    680,990,904.80x = 343,849,812,840,926,080
  5. Step 5: Solve for x
    x = 343,849,812,840,926,080/680,990,904.80
  6. Step 6: Final answer
    x = 504,925,705.20

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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.