Home / 66,284,123.76-99,420,050.99-31,261,207.56

Finding the Fourth Proportional to 66,284,123.76, 99,420,050.99 and 31,261,207.56

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Solution

The fourth proportional to 66,284,123.76, 99,420,050.99 and 31,261,207.56 is: 46,888,918.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,284,123.76 : 99,420,050.99 = 31,261,207.56 : x
  2. Step 2: Convert to fraction form
    66,284,123.76/99,420,050.99 = 31,261,207.56/x
  3. Step 3: Cross multiply
    66,284,123.76x = 99,420,050.99 × 31,261,207.56
  4. Step 4: Simplify right side
    66,284,123.76x = 3,107,990,849,329,501.50
  5. Step 5: Solve for x
    x = 3,107,990,849,329,501.50/66,284,123.76
  6. Step 6: Final answer
    x = 46,888,918.09

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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.