Home / 66,208,045.85-99,326,363.22-20,153,516.21

Finding the Fourth Proportional to 66,208,045.85, 99,326,363.22 and 20,153,516.21

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Solution

The fourth proportional to 66,208,045.85, 99,326,363.22 and 20,153,516.21 is: 30,234,625.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,208,045.85 : 99,326,363.22 = 20,153,516.21 : x
  2. Step 2: Convert to fraction form
    66,208,045.85/99,326,363.22 = 20,153,516.21/x
  3. Step 3: Cross multiply
    66,208,045.85x = 99,326,363.22 × 20,153,516.21
  4. Step 4: Simplify right side
    66,208,045.85x = 2,001,775,471,133,850.50
  5. Step 5: Solve for x
    x = 2,001,775,471,133,850.50/66,208,045.85
  6. Step 6: Final answer
    x = 30,234,625.50

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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.