Home / 66,465,764.33-99,713,468.72-20,412,280.94

Finding the Fourth Proportional to 66,465,764.33, 99,713,468.72 and 20,412,280.94

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Solution

The fourth proportional to 66,465,764.33, 99,713,468.72 and 20,412,280.94 is: 30,622,973.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,465,764.33 : 99,713,468.72 = 20,412,280.94 : x
  2. Step 2: Convert to fraction form
    66,465,764.33/99,713,468.72 = 20,412,280.94/x
  3. Step 3: Cross multiply
    66,465,764.33x = 99,713,468.72 × 20,412,280.94
  4. Step 4: Simplify right side
    66,465,764.33x = 2,035,379,337,127,893.75
  5. Step 5: Solve for x
    x = 2,035,379,337,127,893.75/66,465,764.33
  6. Step 6: Final answer
    x = 30,622,973.46

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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.