Home / 56,977,137.05-78,628,339.24-30,872,361.47

Finding the Fourth Proportional to 56,977,137.05, 78,628,339.24 and 30,872,361.47

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Solution

The fourth proportional to 56,977,137.05, 78,628,339.24 and 30,872,361.47 is: 42,603,799.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,977,137.05 : 78,628,339.24 = 30,872,361.47 : x
  2. Step 2: Convert to fraction form
    56,977,137.05/78,628,339.24 = 30,872,361.47/x
  3. Step 3: Cross multiply
    56,977,137.05x = 78,628,339.24 × 30,872,361.47
  4. Step 4: Simplify right side
    56,977,137.05x = 2,427,442,510,332,742.50
  5. Step 5: Solve for x
    x = 2,427,442,510,332,742.50/56,977,137.05
  6. Step 6: Final answer
    x = 42,603,799.28

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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.