Home / 20,804,567.35-31,206,851.03-12,742,410.55

Finding the Fourth Proportional to 20,804,567.35, 31,206,851.03 and 12,742,410.55

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Solution

The fourth proportional to 20,804,567.35, 31,206,851.03 and 12,742,410.55 is: 19,113,615.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,804,567.35 : 31,206,851.03 = 12,742,410.55 : x
  2. Step 2: Convert to fraction form
    20,804,567.35/31,206,851.03 = 12,742,410.55/x
  3. Step 3: Cross multiply
    20,804,567.35x = 31,206,851.03 × 12,742,410.55
  4. Step 4: Simplify right side
    20,804,567.35x = 397,650,507,796,950.38
  5. Step 5: Solve for x
    x = 397,650,507,796,950.38/20,804,567.35
  6. Step 6: Final answer
    x = 19,113,615.83

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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.