Home / 91,780,908.45-137,630,963.32-48,640,004.30

Finding the Fourth Proportional to 91,780,908.45, 137,630,963.32 and 48,640,004.30

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Solution

The fourth proportional to 91,780,908.45, 137,630,963.32 and 48,640,004.30 is: 72,938,596.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,780,908.45 : 137,630,963.32 = 48,640,004.30 : x
  2. Step 2: Convert to fraction form
    91,780,908.45/137,630,963.32 = 48,640,004.30/x
  3. Step 3: Cross multiply
    91,780,908.45x = 137,630,963.32 × 48,640,004.30
  4. Step 4: Simplify right side
    91,780,908.45x = 6,694,370,646,888,187
  5. Step 5: Solve for x
    x = 6,694,370,646,888,187/91,780,908.45
  6. Step 6: Final answer
    x = 72,938,596.49

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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.