Home / 21,248,892,404.60-31,873,338,606.90-20,938,956,013.40

Finding the Fourth Proportional to 21,248,892,404.60, 31,873,338,606.90 and 20,938,956,013.40

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Solution

The fourth proportional to 21,248,892,404.60, 31,873,338,606.90 and 20,938,956,013.40 is: 31,408,434,020.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,248,892,404.60 : 31,873,338,606.90 = 20,938,956,013.40 : x
  2. Step 2: Convert to fraction form
    21,248,892,404.60/31,873,338,606.90 = 20,938,956,013.40/x
  3. Step 3: Cross multiply
    21,248,892,404.60x = 31,873,338,606.90 × 20,938,956,013.40
  4. Step 4: Simplify right side
    21,248,892,404.60x = 667,394,435,090,083,217,408
  5. Step 5: Solve for x
    x = 667,394,435,090,083,217,408/21,248,892,404.60
  6. Step 6: Final answer
    x = 31,408,434,020.10

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1.5x scale

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.