Home / 20,120,378,410.16-27,765,313,811.54-10,964,712,828.68

Finding the Fourth Proportional to 20,120,378,410.16, 27,765,313,811.54 and 10,964,712,828.68

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Solution

The fourth proportional to 20,120,378,410.16, 27,765,313,811.54 and 10,964,712,828.68 is: 15,130,863,164.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,120,378,410.16 : 27,765,313,811.54 = 10,964,712,828.68 : x
  2. Step 2: Convert to fraction form
    20,120,378,410.16/27,765,313,811.54 = 10,964,712,828.68/x
  3. Step 3: Cross multiply
    20,120,378,410.16x = 27,765,313,811.54 × 10,964,712,828.68
  4. Step 4: Simplify right side
    20,120,378,410.16x = 304,438,692,541,718,659,072
  5. Step 5: Solve for x
    x = 304,438,692,541,718,659,072/20,120,378,410.16
  6. Step 6: Final answer
    x = 15,130,863,164.48

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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.