Home / 20,120,378,419.05-27,765,313,823.79-10,964,712,837.57

Finding the Fourth Proportional to 20,120,378,419.05, 27,765,313,823.79 and 10,964,712,837.57

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Solution

The fourth proportional to 20,120,378,419.05, 27,765,313,823.79 and 10,964,712,837.57 is: 15,130,863,176.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,120,378,419.05 : 27,765,313,823.79 = 10,964,712,837.57 : x
  2. Step 2: Convert to fraction form
    20,120,378,419.05/27,765,313,823.79 = 10,964,712,837.57/x
  3. Step 3: Cross multiply
    20,120,378,419.05x = 27,765,313,823.79 × 10,964,712,837.57
  4. Step 4: Simplify right side
    20,120,378,419.05x = 304,438,692,922,870,005,760
  5. Step 5: Solve for x
    x = 304,438,692,922,870,005,760/20,120,378,419.05
  6. Step 6: Final answer
    x = 15,130,863,176.74

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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.