Home / 27,748,031,923.76-38,285,720,310.81-15,705,042,731.03

Finding the Fourth Proportional to 27,748,031,923.76, 38,285,720,310.81 and 15,705,042,731.03

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Solution

The fourth proportional to 27,748,031,923.76, 38,285,720,310.81 and 15,705,042,731.03 is: 21,669,243,970.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,748,031,923.76 : 38,285,720,310.81 = 15,705,042,731.03 : x
  2. Step 2: Convert to fraction form
    27,748,031,923.76/38,285,720,310.81 = 15,705,042,731.03/x
  3. Step 3: Cross multiply
    27,748,031,923.76x = 38,285,720,310.81 × 15,705,042,731.03
  4. Step 4: Simplify right side
    27,748,031,923.76x = 601,278,873,469,657,939,968
  5. Step 5: Solve for x
    x = 601,278,873,469,657,939,968/27,748,031,923.76
  6. Step 6: Final answer
    x = 21,669,243,970.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.