Home / 39,591,012.40-59,386,518.60-20,219,987.95

Finding the Fourth Proportional to 39,591,012.40, 59,386,518.60 and 20,219,987.95

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Solution

The fourth proportional to 39,591,012.40, 59,386,518.60 and 20,219,987.95 is: 30,329,981.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,591,012.40 : 59,386,518.60 = 20,219,987.95 : x
  2. Step 2: Convert to fraction form
    39,591,012.40/59,386,518.60 = 20,219,987.95/x
  3. Step 3: Cross multiply
    39,591,012.40x = 59,386,518.60 × 20,219,987.95
  4. Step 4: Simplify right side
    39,591,012.40x = 1,200,794,690,484,450.75
  5. Step 5: Solve for x
    x = 1,200,794,690,484,450.75/39,591,012.40
  6. Step 6: Final answer
    x = 30,329,981.93

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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.