Home / 3,938,714,928.21-5,435,556,245.26-2,154,527,551.23

Finding the Fourth Proportional to 3,938,714,928.21, 5,435,556,245.26 and 2,154,527,551.23

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Solution

The fourth proportional to 3,938,714,928.21, 5,435,556,245.26 and 2,154,527,551.23 is: 2,973,318,937.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,938,714,928.21 : 5,435,556,245.26 = 2,154,527,551.23 : x
  2. Step 2: Convert to fraction form
    3,938,714,928.21/5,435,556,245.26 = 2,154,527,551.23/x
  3. Step 3: Cross multiply
    3,938,714,928.21x = 5,435,556,245.26 × 2,154,527,551.23
  4. Step 4: Simplify right side
    3,938,714,928.21x = 11,711,055,686,667,573,248
  5. Step 5: Solve for x
    x = 11,711,055,686,667,573,248/3,938,714,928.21
  6. Step 6: Final answer
    x = 2,973,318,937.81

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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.