Home / 72,425,352.60-108,638,028.90-38,413,128.60

Finding the Fourth Proportional to 72,425,352.60, 108,638,028.90 and 38,413,128.60

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Solution

The fourth proportional to 72,425,352.60, 108,638,028.90 and 38,413,128.60 is: 57,619,692.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,425,352.60 : 108,638,028.90 = 38,413,128.60 : x
  2. Step 2: Convert to fraction form
    72,425,352.60/108,638,028.90 = 38,413,128.60/x
  3. Step 3: Cross multiply
    72,425,352.60x = 108,638,028.90 × 38,413,128.60
  4. Step 4: Simplify right side
    72,425,352.60x = 4,173,126,574,986,217
  5. Step 5: Solve for x
    x = 4,173,126,574,986,217/72,425,352.60
  6. Step 6: Final answer
    x = 57,619,692.90

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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.