Home / 42,977,362.50-64,425,518.64-21,391,557.75

Finding the Fourth Proportional to 42,977,362.50, 64,425,518.64 and 21,391,557.75

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Solution

The fourth proportional to 42,977,362.50, 64,425,518.64 and 21,391,557.75 is: 32,067,165.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,977,362.50 : 64,425,518.64 = 21,391,557.75 : x
  2. Step 2: Convert to fraction form
    42,977,362.50/64,425,518.64 = 21,391,557.75/x
  3. Step 3: Cross multiply
    42,977,362.50x = 64,425,518.64 × 21,391,557.75
  4. Step 4: Simplify right side
    42,977,362.50x = 1,378,162,202,561,261.50
  5. Step 5: Solve for x
    x = 1,378,162,202,561,261.50/42,977,362.50
  6. Step 6: Final answer
    x = 32,067,165.65

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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.