Home / 28,335,790.56-42,489,710.91-11,938,080.90

Finding the Fourth Proportional to 28,335,790.56, 42,489,710.91 and 11,938,080.90

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Solution

The fourth proportional to 28,335,790.56, 42,489,710.91 and 11,938,080.90 is: 17,901,233.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,335,790.56 : 42,489,710.91 = 11,938,080.90 : x
  2. Step 2: Convert to fraction form
    28,335,790.56/42,489,710.91 = 11,938,080.90/x
  3. Step 3: Cross multiply
    28,335,790.56x = 42,489,710.91 × 11,938,080.90
  4. Step 4: Simplify right side
    28,335,790.56x = 507,245,606,261,192.56
  5. Step 5: Solve for x
    x = 507,245,606,261,192.56/28,335,790.56
  6. Step 6: Final answer
    x = 17,901,233.61

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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.