Home / 56,977,394.52-78,628,834-30,871,932.86

Finding the Fourth Proportional to 56,977,394.52, 78,628,834 and 30,871,932.86

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Solution

The fourth proportional to 56,977,394.52, 78,628,834 and 30,871,932.86 is: 42,603,283.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,977,394.52 : 78,628,834 = 30,871,932.86 : x
  2. Step 2: Convert to fraction form
    56,977,394.52/78,628,834 = 30,871,932.86/x
  3. Step 3: Cross multiply
    56,977,394.52x = 78,628,834 × 30,871,932.86
  4. Step 4: Simplify right side
    56,977,394.52x = 2,427,424,084,108,085
  5. Step 5: Solve for x
    x = 2,427,424,084,108,085/56,977,394.52
  6. Step 6: Final answer
    x = 42,603,283.36

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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.