Home / 20,804,568.35-31,206,852.53-12,742,411.55

Finding the Fourth Proportional to 20,804,568.35, 31,206,852.53 and 12,742,411.55

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Solution

The fourth proportional to 20,804,568.35, 31,206,852.53 and 12,742,411.55 is: 19,113,617.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,804,568.35 : 31,206,852.53 = 12,742,411.55 : x
  2. Step 2: Convert to fraction form
    20,804,568.35/31,206,852.53 = 12,742,411.55/x
  3. Step 3: Cross multiply
    20,804,568.35x = 31,206,852.53 × 12,742,411.55
  4. Step 4: Simplify right side
    20,804,568.35x = 397,650,558,117,418.75
  5. Step 5: Solve for x
    x = 397,650,558,117,418.75/20,804,568.35
  6. Step 6: Final answer
    x = 19,113,617.33

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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.