Home / 52,251,816.86-78,368,560.34-19,905,660.39

Finding the Fourth Proportional to 52,251,816.86, 78,368,560.34 and 19,905,660.39

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Solution

The fourth proportional to 52,251,816.86, 78,368,560.34 and 19,905,660.39 is: 29,854,999.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,251,816.86 : 78,368,560.34 = 19,905,660.39 : x
  2. Step 2: Convert to fraction form
    52,251,816.86/78,368,560.34 = 19,905,660.39/x
  3. Step 3: Cross multiply
    52,251,816.86x = 78,368,560.34 × 19,905,660.39
  4. Step 4: Simplify right side
    52,251,816.86x = 1,559,977,947,687,586.25
  5. Step 5: Solve for x
    x = 1,559,977,947,687,586.25/52,251,816.86
  6. Step 6: Final answer
    x = 29,854,999.15

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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.