Home / 12,687,141.78-19,030,712.67-3,102,406.52

Finding the Fourth Proportional to 12,687,141.78, 19,030,712.67 and 3,102,406.52

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Solution

The fourth proportional to 12,687,141.78, 19,030,712.67 and 3,102,406.52 is: 4,653,609.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,687,141.78 : 19,030,712.67 = 3,102,406.52 : x
  2. Step 2: Convert to fraction form
    12,687,141.78/19,030,712.67 = 3,102,406.52/x
  3. Step 3: Cross multiply
    12,687,141.78x = 19,030,712.67 × 3,102,406.52
  4. Step 4: Simplify right side
    12,687,141.78x = 59,041,006,972,501.05
  5. Step 5: Solve for x
    x = 59,041,006,972,501.05/12,687,141.78
  6. Step 6: Final answer
    x = 4,653,609.77

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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.