Home / 70,742,572.86-106,125,377.49-20,892,438.39

Finding the Fourth Proportional to 70,742,572.86, 106,125,377.49 and 20,892,438.39

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Solution

The fourth proportional to 70,742,572.86, 106,125,377.49 and 20,892,438.39 is: 31,342,059.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,742,572.86 : 106,125,377.49 = 20,892,438.39 : x
  2. Step 2: Convert to fraction form
    70,742,572.86/106,125,377.49 = 20,892,438.39/x
  3. Step 3: Cross multiply
    70,742,572.86x = 106,125,377.49 × 20,892,438.39
  4. Step 4: Simplify right side
    70,742,572.86x = 2,217,217,910,825,317.75
  5. Step 5: Solve for x
    x = 2,217,217,910,825,317.75/70,742,572.86
  6. Step 6: Final answer
    x = 31,342,059.26

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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.