Home / 91,780,909.94-137,630,965.57-48,640,005.79

Finding the Fourth Proportional to 91,780,909.94, 137,630,965.57 and 48,640,005.79

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Solution

The fourth proportional to 91,780,909.94, 137,630,965.57 and 48,640,005.79 is: 72,938,598.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,780,909.94 : 137,630,965.57 = 48,640,005.79 : x
  2. Step 2: Convert to fraction form
    91,780,909.94/137,630,965.57 = 48,640,005.79/x
  3. Step 3: Cross multiply
    91,780,909.94x = 137,630,965.57 × 48,640,005.79
  4. Step 4: Simplify right side
    91,780,909.94x = 6,694,370,961,742,413
  5. Step 5: Solve for x
    x = 6,694,370,961,742,413/91,780,909.94
  6. Step 6: Final answer
    x = 72,938,598.73

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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.