Home / 338,339,791,678.72-507,718,435,958.85-156,788,784,311.58

Finding the Fourth Proportional to 338,339,791,678.72, 507,718,435,958.85 and 156,788,784,311.58

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Solution

The fourth proportional to 338,339,791,678.72, 507,718,435,958.85 and 156,788,784,311.58 is: 235,279,911,805.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,339,791,678.72 : 507,718,435,958.85 = 156,788,784,311.58 : x
  2. Step 2: Convert to fraction form
    338,339,791,678.72/507,718,435,958.85 = 156,788,784,311.58/x
  3. Step 3: Cross multiply
    338,339,791,678.72x = 507,718,435,958.85 × 156,788,784,311.58
  4. Step 4: Simplify right side
    338,339,791,678.72x = 79,604,556,346,564,863,328,256
  5. Step 5: Solve for x
    x = 79,604,556,346,564,863,328,256/338,339,791,678.72
  6. Step 6: Final answer
    x = 235,279,911,805.81

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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.