Home / 520,854,414.50-718,779,879.44-282,699,684.44

Finding the Fourth Proportional to 520,854,414.50, 718,779,879.44 and 282,699,684.44

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Solution

The fourth proportional to 520,854,414.50, 718,779,879.44 and 282,699,684.44 is: 390,125,991.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,854,414.50 : 718,779,879.44 = 282,699,684.44 : x
  2. Step 2: Convert to fraction form
    520,854,414.50/718,779,879.44 = 282,699,684.44/x
  3. Step 3: Cross multiply
    520,854,414.50x = 718,779,879.44 × 282,699,684.44
  4. Step 4: Simplify right side
    520,854,414.50x = 203,198,845,102,296,928
  5. Step 5: Solve for x
    x = 203,198,845,102,296,928/520,854,414.50
  6. Step 6: Final answer
    x = 390,125,991.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.