Home / 319,852,910.57-479,779,365.85-77,515,814.57

Finding the Fourth Proportional to 319,852,910.57, 479,779,365.85 and 77,515,814.57

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Solution

The fourth proportional to 319,852,910.57, 479,779,365.85 and 77,515,814.57 is: 116,273,721.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,852,910.57 : 479,779,365.85 = 77,515,814.57 : x
  2. Step 2: Convert to fraction form
    319,852,910.57/479,779,365.85 = 77,515,814.57/x
  3. Step 3: Cross multiply
    319,852,910.57x = 479,779,365.85 × 77,515,814.57
  4. Step 4: Simplify right side
    319,852,910.57x = 37,190,488,354,954,312
  5. Step 5: Solve for x
    x = 37,190,488,354,954,312/319,852,910.57
  6. Step 6: Final answer
    x = 116,273,721.85

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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.