Home / 25,610,147,106.70-38,415,220,660.05-21,256,582,434.70

Finding the Fourth Proportional to 25,610,147,106.70, 38,415,220,660.05 and 21,256,582,434.70

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Solution

The fourth proportional to 25,610,147,106.70, 38,415,220,660.05 and 21,256,582,434.70 is: 31,884,873,652.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,610,147,106.70 : 38,415,220,660.05 = 21,256,582,434.70 : x
  2. Step 2: Convert to fraction form
    25,610,147,106.70/38,415,220,660.05 = 21,256,582,434.70/x
  3. Step 3: Cross multiply
    25,610,147,106.70x = 38,415,220,660.05 × 21,256,582,434.70
  4. Step 4: Simplify right side
    25,610,147,106.70x = 816,576,304,707,543,498,752
  5. Step 5: Solve for x
    x = 816,576,304,707,543,498,752/25,610,147,106.70
  6. Step 6: Final answer
    x = 31,884,873,652.05

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Double scale
Find fourth proportional to 25,610,147,107.70, 38,415,220,661.55 and 21,256,582,435.70
Similar ratio
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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.