Home / 1,990,657,999.40-2,789,787,743.80-1,990,657,999.40

Finding the Fourth Proportional to 1,990,657,999.40, 2,789,787,743.80 and 1,990,657,999.40

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Solution

The fourth proportional to 1,990,657,999.40, 2,789,787,743.80 and 1,990,657,999.40 is: 2,789,787,743.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990,657,999.40 : 2,789,787,743.80 = 1,990,657,999.40 : x
  2. Step 2: Convert to fraction form
    1,990,657,999.40/2,789,787,743.80 = 1,990,657,999.40/x
  3. Step 3: Cross multiply
    1,990,657,999.40x = 2,789,787,743.80 × 1,990,657,999.40
  4. Step 4: Simplify right side
    1,990,657,999.40x = 5,553,513,288,823,547,904
  5. Step 5: Solve for x
    x = 5,553,513,288,823,547,904/1,990,657,999.40
  6. Step 6: Final answer
    x = 2,789,787,743.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.