Home / 20,511,872,757.84-30,778,327,253.72-9,897,149,624.79

Finding the Fourth Proportional to 20,511,872,757.84, 30,778,327,253.72 and 9,897,149,624.79

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Solution

The fourth proportional to 20,511,872,757.84, 30,778,327,253.72 and 9,897,149,624.79 is: 14,850,799,516.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,511,872,757.84 : 30,778,327,253.72 = 9,897,149,624.79 : x
  2. Step 2: Convert to fraction form
    20,511,872,757.84/30,778,327,253.72 = 9,897,149,624.79/x
  3. Step 3: Cross multiply
    20,511,872,757.84x = 30,778,327,253.72 × 9,897,149,624.79
  4. Step 4: Simplify right side
    20,511,872,757.84x = 304,617,710,030,818,770,944
  5. Step 5: Solve for x
    x = 304,617,710,030,818,770,944/20,511,872,757.84
  6. Step 6: Final answer
    x = 14,850,799,516.32

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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.