Home / 1,992,715,882.40-2,990,774,434.80-889,019,213.60

Finding the Fourth Proportional to 1,992,715,882.40, 2,990,774,434.80 and 889,019,213.60

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Solution

The fourth proportional to 1,992,715,882.40, 2,990,774,434.80 and 889,019,213.60 is: 1,334,287,521.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992,715,882.40 : 2,990,774,434.80 = 889,019,213.60 : x
  2. Step 2: Convert to fraction form
    1,992,715,882.40/2,990,774,434.80 = 889,019,213.60/x
  3. Step 3: Cross multiply
    1,992,715,882.40x = 2,990,774,434.80 × 889,019,213.60
  4. Step 4: Simplify right side
    1,992,715,882.40x = 2,658,855,936,080,880,640
  5. Step 5: Solve for x
    x = 2,658,855,936,080,880,640/1,992,715,882.40
  6. Step 6: Final answer
    x = 1,334,287,521.65

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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.