Home / 20,858,904,048.30-31,288,356,072.45-9,838,943,472.30

Finding the Fourth Proportional to 20,858,904,048.30, 31,288,356,072.45 and 9,838,943,472.30

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Solution

The fourth proportional to 20,858,904,048.30, 31,288,356,072.45 and 9,838,943,472.30 is: 14,758,415,208.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,858,904,048.30 : 31,288,356,072.45 = 9,838,943,472.30 : x
  2. Step 2: Convert to fraction form
    20,858,904,048.30/31,288,356,072.45 = 9,838,943,472.30/x
  3. Step 3: Cross multiply
    20,858,904,048.30x = 31,288,356,072.45 × 9,838,943,472.30
  4. Step 4: Simplify right side
    20,858,904,048.30x = 307,844,366,738,030,002,176
  5. Step 5: Solve for x
    x = 307,844,366,738,030,002,176/20,858,904,048.30
  6. Step 6: Final answer
    x = 14,758,415,208.45

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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.