Home / 20,810,072,137.80-31,206,038,280.30-8,384,272,969.80

Finding the Fourth Proportional to 20,810,072,137.80, 31,206,038,280.30 and 8,384,272,969.80

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Solution

The fourth proportional to 20,810,072,137.80, 31,206,038,280.30 and 8,384,272,969.80 is: 12,572,755,227.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,810,072,137.80 : 31,206,038,280.30 = 8,384,272,969.80 : x
  2. Step 2: Convert to fraction form
    20,810,072,137.80/31,206,038,280.30 = 8,384,272,969.80/x
  3. Step 3: Cross multiply
    20,810,072,137.80x = 31,206,038,280.30 × 8,384,272,969.80
  4. Step 4: Simplify right side
    20,810,072,137.80x = 261,639,943,248,063,365,120
  5. Step 5: Solve for x
    x = 261,639,943,248,063,365,120/20,810,072,137.80
  6. Step 6: Final answer
    x = 12,572,755,227.16

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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.