Home / 70,123,137.32-96,779,542.64-40,353,173.57

Finding the Fourth Proportional to 70,123,137.32, 96,779,542.64 and 40,353,173.57

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Solution

The fourth proportional to 70,123,137.32, 96,779,542.64 and 40,353,173.57 is: 55,692,911.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,123,137.32 : 96,779,542.64 = 40,353,173.57 : x
  2. Step 2: Convert to fraction form
    70,123,137.32/96,779,542.64 = 40,353,173.57/x
  3. Step 3: Cross multiply
    70,123,137.32x = 96,779,542.64 × 40,353,173.57
  4. Step 4: Simplify right side
    70,123,137.32x = 3,905,361,682,177,136
  5. Step 5: Solve for x
    x = 3,905,361,682,177,136/70,123,137.32
  6. Step 6: Final answer
    x = 55,692,911.52

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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.