Home / 214,326,110.90-321,489,166.35-77,993,779.70

Finding the Fourth Proportional to 214,326,110.90, 321,489,166.35 and 77,993,779.70

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Solution

The fourth proportional to 214,326,110.90, 321,489,166.35 and 77,993,779.70 is: 116,990,669.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,326,110.90 : 321,489,166.35 = 77,993,779.70 : x
  2. Step 2: Convert to fraction form
    214,326,110.90/321,489,166.35 = 77,993,779.70/x
  3. Step 3: Cross multiply
    214,326,110.90x = 321,489,166.35 × 77,993,779.70
  4. Step 4: Simplify right side
    214,326,110.90x = 25,074,155,216,238,556
  5. Step 5: Solve for x
    x = 25,074,155,216,238,556/214,326,110.90
  6. Step 6: Final answer
    x = 116,990,669.55

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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.