Home / 20,421,680,809.33-30,591,497,055.51-10,168,922,785.19

Finding the Fourth Proportional to 20,421,680,809.33, 30,591,497,055.51 and 10,168,922,785.19

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Solution

The fourth proportional to 20,421,680,809.33, 30,591,497,055.51 and 10,168,922,785.19 is: 15,232,956,304.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,421,680,809.33 : 30,591,497,055.51 = 10,168,922,785.19 : x
  2. Step 2: Convert to fraction form
    20,421,680,809.33/30,591,497,055.51 = 10,168,922,785.19/x
  3. Step 3: Cross multiply
    20,421,680,809.33x = 30,591,497,055.51 × 10,168,922,785.19
  4. Step 4: Simplify right side
    20,421,680,809.33x = 311,082,571,440,695,410,688
  5. Step 5: Solve for x
    x = 311,082,571,440,695,410,688/20,421,680,809.33
  6. Step 6: Final answer
    x = 15,232,956,304.88

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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.