Home / 72,950,087.72-100,673,507.46-39,909,570.36

Finding the Fourth Proportional to 72,950,087.72, 100,673,507.46 and 39,909,570.36

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Solution

The fourth proportional to 72,950,087.72, 100,673,507.46 and 39,909,570.36 is: 55,076,512.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,950,087.72 : 100,673,507.46 = 39,909,570.36 : x
  2. Step 2: Convert to fraction form
    72,950,087.72/100,673,507.46 = 39,909,570.36/x
  3. Step 3: Cross multiply
    72,950,087.72x = 100,673,507.46 × 39,909,570.36
  4. Step 4: Simplify right side
    72,950,087.72x = 4,017,836,429,362,854.50
  5. Step 5: Solve for x
    x = 4,017,836,429,362,854.50/72,950,087.72
  6. Step 6: Final answer
    x = 55,076,512.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.