Home / 1,990,657,889.60-2,985,986,834.40-1,668,171,617.60

Finding the Fourth Proportional to 1,990,657,889.60, 2,985,986,834.40 and 1,668,171,617.60

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Solution

The fourth proportional to 1,990,657,889.60, 2,985,986,834.40 and 1,668,171,617.60 is: 2,502,257,426.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990,657,889.60 : 2,985,986,834.40 = 1,668,171,617.60 : x
  2. Step 2: Convert to fraction form
    1,990,657,889.60/2,985,986,834.40 = 1,668,171,617.60/x
  3. Step 3: Cross multiply
    1,990,657,889.60x = 2,985,986,834.40 × 1,668,171,617.60
  4. Step 4: Simplify right side
    1,990,657,889.60x = 4,981,138,487,673,351,168
  5. Step 5: Solve for x
    x = 4,981,138,487,673,351,168/1,990,657,889.60
  6. Step 6: Final answer
    x = 2,502,257,426.40

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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.