Home / 338,339,791,305.78-507,718,435,396.40-156,788,783,938.64

Finding the Fourth Proportional to 338,339,791,305.78, 507,718,435,396.40 and 156,788,783,938.64

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Solution

The fourth proportional to 338,339,791,305.78, 507,718,435,396.40 and 156,788,783,938.64 is: 235,279,911,244.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,339,791,305.78 : 507,718,435,396.40 = 156,788,783,938.64 : x
  2. Step 2: Convert to fraction form
    338,339,791,305.78/507,718,435,396.40 = 156,788,783,938.64/x
  3. Step 3: Cross multiply
    338,339,791,305.78x = 507,718,435,396.40 × 156,788,783,938.64
  4. Step 4: Simplify right side
    338,339,791,305.78x = 79,604,556,069,030,519,111,680
  5. Step 5: Solve for x
    x = 79,604,556,069,030,519,111,680/338,339,791,305.78
  6. Step 6: Final answer
    x = 235,279,911,244.87

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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.