Home / 1,321,101,097.80-1,981,651,646.70-544,346,932.20

Finding the Fourth Proportional to 1,321,101,097.80, 1,981,651,646.70 and 544,346,932.20

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Solution

The fourth proportional to 1,321,101,097.80, 1,981,651,646.70 and 544,346,932.20 is: 816,520,398.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,101,097.80 : 1,981,651,646.70 = 544,346,932.20 : x
  2. Step 2: Convert to fraction form
    1,321,101,097.80/1,981,651,646.70 = 544,346,932.20/x
  3. Step 3: Cross multiply
    1,321,101,097.80x = 1,981,651,646.70 × 544,346,932.20
  4. Step 4: Simplify right side
    1,321,101,097.80x = 1,078,705,994,570,223,360
  5. Step 5: Solve for x
    x = 1,078,705,994,570,223,360/1,321,101,097.80
  6. Step 6: Final answer
    x = 816,520,398.30

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Double scale
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1.5x scale

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.