Home / 42,768,605.40-64,040,933.70-31,347,216.60

Finding the Fourth Proportional to 42,768,605.40, 64,040,933.70 and 31,347,216.60

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Solution

The fourth proportional to 42,768,605.40, 64,040,933.70 and 31,347,216.60 is: 46,938,753.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,768,605.40 : 64,040,933.70 = 31,347,216.60 : x
  2. Step 2: Convert to fraction form
    42,768,605.40/64,040,933.70 = 31,347,216.60/x
  3. Step 3: Cross multiply
    42,768,605.40x = 64,040,933.70 × 31,347,216.60
  4. Step 4: Simplify right side
    42,768,605.40x = 2,007,505,019,960,139.50
  5. Step 5: Solve for x
    x = 2,007,505,019,960,139.50/42,768,605.40
  6. Step 6: Final answer
    x = 46,938,753.35

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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.