Home / 319,852,911.57-479,779,367.34-77,515,815.57

Finding the Fourth Proportional to 319,852,911.57, 479,779,367.34 and 77,515,815.57

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Solution

The fourth proportional to 319,852,911.57, 479,779,367.34 and 77,515,815.57 is: 116,273,723.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,852,911.57 : 479,779,367.34 = 77,515,815.57 : x
  2. Step 2: Convert to fraction form
    319,852,911.57/479,779,367.34 = 77,515,815.57/x
  3. Step 3: Cross multiply
    319,852,911.57x = 479,779,367.34 × 77,515,815.57
  4. Step 4: Simplify right side
    319,852,911.57x = 37,190,488,953,018,720
  5. Step 5: Solve for x
    x = 37,190,488,953,018,720/319,852,911.57
  6. Step 6: Final answer
    x = 116,273,723.35

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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.