Home / 56,977,426.26-78,628,877.82-30,871,964.70

Finding the Fourth Proportional to 56,977,426.26, 78,628,877.82 and 30,871,964.70

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Solution

The fourth proportional to 56,977,426.26, 78,628,877.82 and 30,871,964.70 is: 42,603,327.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,977,426.26 : 78,628,877.82 = 30,871,964.70 : x
  2. Step 2: Convert to fraction form
    56,977,426.26/78,628,877.82 = 30,871,964.70/x
  3. Step 3: Cross multiply
    56,977,426.26x = 78,628,877.82 × 30,871,964.70
  4. Step 4: Simplify right side
    56,977,426.26x = 2,427,427,940,459,652.50
  5. Step 5: Solve for x
    x = 2,427,427,940,459,652.50/56,977,426.26
  6. Step 6: Final answer
    x = 42,603,327.31

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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.