Home / 56,977,398.52-78,628,839.52-30,871,936.86

Finding the Fourth Proportional to 56,977,398.52, 78,628,839.52 and 30,871,936.86

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Solution

The fourth proportional to 56,977,398.52, 78,628,839.52 and 30,871,936.86 is: 42,603,288.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,977,398.52 : 78,628,839.52 = 30,871,936.86 : x
  2. Step 2: Convert to fraction form
    56,977,398.52/78,628,839.52 = 30,871,936.86/x
  3. Step 3: Cross multiply
    56,977,398.52x = 78,628,839.52 × 30,871,936.86
  4. Step 4: Simplify right side
    56,977,398.52x = 2,427,424,569,036,512.50
  5. Step 5: Solve for x
    x = 2,427,424,569,036,512.50/56,977,398.52
  6. Step 6: Final answer
    x = 42,603,288.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.