Home / 21,311,421,694.80-31,967,132,542.20-20,984,904,344.40

Finding the Fourth Proportional to 21,311,421,694.80, 31,967,132,542.20 and 20,984,904,344.40

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Solution

The fourth proportional to 21,311,421,694.80, 31,967,132,542.20 and 20,984,904,344.40 is: 31,477,356,516.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,311,421,694.80 : 31,967,132,542.20 = 20,984,904,344.40 : x
  2. Step 2: Convert to fraction form
    21,311,421,694.80/31,967,132,542.20 = 20,984,904,344.40/x
  3. Step 3: Cross multiply
    21,311,421,694.80x = 31,967,132,542.20 × 20,984,904,344.40
  4. Step 4: Simplify right side
    21,311,421,694.80x = 670,827,218,562,823,487,488
  5. Step 5: Solve for x
    x = 670,827,218,562,823,487,488/21,311,421,694.80
  6. Step 6: Final answer
    x = 31,477,356,516.60

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Double scale
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1.5x scale

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.