Home / 28,409,987.52-42,610,315.68-12,231,583.20

Finding the Fourth Proportional to 28,409,987.52, 42,610,315.68 and 12,231,583.20

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Solution

The fourth proportional to 28,409,987.52, 42,610,315.68 and 12,231,583.20 is: 18,345,366.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,409,987.52 : 42,610,315.68 = 12,231,583.20 : x
  2. Step 2: Convert to fraction form
    28,409,987.52/42,610,315.68 = 12,231,583.20/x
  3. Step 3: Cross multiply
    28,409,987.52x = 42,610,315.68 × 12,231,583.20
  4. Step 4: Simplify right side
    28,409,987.52x = 521,191,621,418,184.56
  5. Step 5: Solve for x
    x = 521,191,621,418,184.56/28,409,987.52
  6. Step 6: Final answer
    x = 18,345,366.08

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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.