Home / 70,123,138.82-96,779,544.71-40,353,175.07

Finding the Fourth Proportional to 70,123,138.82, 96,779,544.71 and 40,353,175.07

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Solution

The fourth proportional to 70,123,138.82, 96,779,544.71 and 40,353,175.07 is: 55,692,913.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,123,138.82 : 96,779,544.71 = 40,353,175.07 : x
  2. Step 2: Convert to fraction form
    70,123,138.82/96,779,544.71 = 40,353,175.07/x
  3. Step 3: Cross multiply
    70,123,138.82x = 96,779,544.71 × 40,353,175.07
  4. Step 4: Simplify right side
    70,123,138.82x = 3,905,361,910,877,522
  5. Step 5: Solve for x
    x = 3,905,361,910,877,522/70,123,138.82
  6. Step 6: Final answer
    x = 55,692,913.59

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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.