Home / 25,610,147,101.20-38,415,220,651.80-21,256,582,429.20

Finding the Fourth Proportional to 25,610,147,101.20, 38,415,220,651.80 and 21,256,582,429.20

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Solution

The fourth proportional to 25,610,147,101.20, 38,415,220,651.80 and 21,256,582,429.20 is: 31,884,873,643.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,610,147,101.20 : 38,415,220,651.80 = 21,256,582,429.20 : x
  2. Step 2: Convert to fraction form
    25,610,147,101.20/38,415,220,651.80 = 21,256,582,429.20/x
  3. Step 3: Cross multiply
    25,610,147,101.20x = 38,415,220,651.80 × 21,256,582,429.20
  4. Step 4: Simplify right side
    25,610,147,101.20x = 816,576,304,320,892,895,232
  5. Step 5: Solve for x
    x = 816,576,304,320,892,895,232/25,610,147,101.20
  6. Step 6: Final answer
    x = 31,884,873,643.80

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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.