Home / 20,858,904,047.80-31,288,356,071.70-9,838,943,471.80

Finding the Fourth Proportional to 20,858,904,047.80, 31,288,356,071.70 and 9,838,943,471.80

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Solution

The fourth proportional to 20,858,904,047.80, 31,288,356,071.70 and 9,838,943,471.80 is: 14,758,415,207.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,858,904,047.80 : 31,288,356,071.70 = 9,838,943,471.80 : x
  2. Step 2: Convert to fraction form
    20,858,904,047.80/31,288,356,071.70 = 9,838,943,471.80/x
  3. Step 3: Cross multiply
    20,858,904,047.80x = 31,288,356,071.70 × 9,838,943,471.80
  4. Step 4: Simplify right side
    20,858,904,047.80x = 307,844,366,715,006,615,552
  5. Step 5: Solve for x
    x = 307,844,366,715,006,615,552/20,858,904,047.80
  6. Step 6: Final answer
    x = 14,758,415,207.70

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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.