Home / 30,212,987.52-45,338,376.96-12,262,091.52

Finding the Fourth Proportional to 30,212,987.52, 45,338,376.96 and 12,262,091.52

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Solution

The fourth proportional to 30,212,987.52, 45,338,376.96 and 12,262,091.52 is: 18,400,806.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,212,987.52 : 45,338,376.96 = 12,262,091.52 : x
  2. Step 2: Convert to fraction form
    30,212,987.52/45,338,376.96 = 12,262,091.52/x
  3. Step 3: Cross multiply
    30,212,987.52x = 45,338,376.96 × 12,262,091.52
  4. Step 4: Simplify right side
    30,212,987.52x = 555,943,327,651,779.38
  5. Step 5: Solve for x
    x = 555,943,327,651,779.38/30,212,987.52
  6. Step 6: Final answer
    x = 18,400,806.19

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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.