Home / 21,101,637.62-31,688,679.34-12,952,134.56

Finding the Fourth Proportional to 21,101,637.62, 31,688,679.34 and 12,952,134.56

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Solution

The fourth proportional to 21,101,637.62, 31,688,679.34 and 12,952,134.56 is: 19,450,435.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,101,637.62 : 31,688,679.34 = 12,952,134.56 : x
  2. Step 2: Convert to fraction form
    21,101,637.62/31,688,679.34 = 12,952,134.56/x
  3. Step 3: Cross multiply
    21,101,637.62x = 31,688,679.34 × 12,952,134.56
  4. Step 4: Simplify right side
    21,101,637.62x = 410,436,038,681,928.56
  5. Step 5: Solve for x
    x = 410,436,038,681,928.56/21,101,637.62
  6. Step 6: Final answer
    x = 19,450,435.37

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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.