Home / 20,804,558.35-31,206,837.53-12,742,401.55

Finding the Fourth Proportional to 20,804,558.35, 31,206,837.53 and 12,742,401.55

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Solution

The fourth proportional to 20,804,558.35, 31,206,837.53 and 12,742,401.55 is: 19,113,602.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,804,558.35 : 31,206,837.53 = 12,742,401.55 : x
  2. Step 2: Convert to fraction form
    20,804,558.35/31,206,837.53 = 12,742,401.55/x
  3. Step 3: Cross multiply
    20,804,558.35x = 31,206,837.53 × 12,742,401.55
  4. Step 4: Simplify right side
    20,804,558.35x = 397,650,054,912,870.19
  5. Step 5: Solve for x
    x = 397,650,054,912,870.19/20,804,558.35
  6. Step 6: Final answer
    x = 19,113,602.33

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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.