Home / 21,257,792,180.40-31,886,688,270.60-15,747,811,892.40

Finding the Fourth Proportional to 21,257,792,180.40, 31,886,688,270.60 and 15,747,811,892.40

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Solution

The fourth proportional to 21,257,792,180.40, 31,886,688,270.60 and 15,747,811,892.40 is: 23,621,717,838.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,257,792,180.40 : 31,886,688,270.60 = 15,747,811,892.40 : x
  2. Step 2: Convert to fraction form
    21,257,792,180.40/31,886,688,270.60 = 15,747,811,892.40/x
  3. Step 3: Cross multiply
    21,257,792,180.40x = 31,886,688,270.60 × 15,747,811,892.40
  4. Step 4: Simplify right side
    21,257,792,180.40x = 502,145,568,757,006,204,928
  5. Step 5: Solve for x
    x = 502,145,568,757,006,204,928/21,257,792,180.40
  6. Step 6: Final answer
    x = 23,621,717,838.60

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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.