Home / 42,738,745.71-64,108,611.05-15,447,111.15

Finding the Fourth Proportional to 42,738,745.71, 64,108,611.05 and 15,447,111.15

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Solution

The fourth proportional to 42,738,745.71, 64,108,611.05 and 15,447,111.15 is: 23,170,844.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,738,745.71 : 64,108,611.05 = 15,447,111.15 : x
  2. Step 2: Convert to fraction form
    42,738,745.71/64,108,611.05 = 15,447,111.15/x
  3. Step 3: Cross multiply
    42,738,745.71x = 64,108,611.05 × 15,447,111.15
  4. Step 4: Simplify right side
    42,738,745.71x = 990,292,840,484,232.75
  5. Step 5: Solve for x
    x = 990,292,840,484,232.75/42,738,745.71
  6. Step 6: Final answer
    x = 23,170,844.72

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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.