Home / 20,288,637.57-30,361,117.59-12,615,895.56

Finding the Fourth Proportional to 20,288,637.57, 30,361,117.59 and 12,615,895.56

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Solution

The fourth proportional to 20,288,637.57, 30,361,117.59 and 12,615,895.56 is: 18,879,172.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,288,637.57 : 30,361,117.59 = 12,615,895.56 : x
  2. Step 2: Convert to fraction form
    20,288,637.57/30,361,117.59 = 12,615,895.56/x
  3. Step 3: Cross multiply
    20,288,637.57x = 30,361,117.59 × 12,615,895.56
  4. Step 4: Simplify right side
    20,288,637.57x = 383,032,688,600,318.94
  5. Step 5: Solve for x
    x = 383,032,688,600,318.94/20,288,637.57
  6. Step 6: Final answer
    x = 18,879,172.51

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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.