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Finding the Fourth Proportional to 53,649,343.70, 80,474,015.55 and 19,571,801.30

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Solution

The fourth proportional to 53,649,343.70, 80,474,015.55 and 19,571,801.30 is: 29,357,701.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,649,343.70 : 80,474,015.55 = 19,571,801.30 : x
  2. Step 2: Convert to fraction form
    53,649,343.70/80,474,015.55 = 19,571,801.30/x
  3. Step 3: Cross multiply
    53,649,343.70x = 80,474,015.55 × 19,571,801.30
  4. Step 4: Simplify right side
    53,649,343.70x = 1,575,021,442,157,710.25
  5. Step 5: Solve for x
    x = 1,575,021,442,157,710.25/53,649,343.70
  6. Step 6: Final answer
    x = 29,357,701.95

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Double scale
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Similar ratio
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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.