Home / 28,364,812.80-42,541,314.30-12,191,291.70

Finding the Fourth Proportional to 28,364,812.80, 42,541,314.30 and 12,191,291.70

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Solution

The fourth proportional to 28,364,812.80, 42,541,314.30 and 12,191,291.70 is: 18,284,399.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,364,812.80 : 42,541,314.30 = 12,191,291.70 : x
  2. Step 2: Convert to fraction form
    28,364,812.80/42,541,314.30 = 12,191,291.70/x
  3. Step 3: Cross multiply
    28,364,812.80x = 42,541,314.30 × 12,191,291.70
  4. Step 4: Simplify right side
    28,364,812.80x = 518,633,571,932,681.25
  5. Step 5: Solve for x
    x = 518,633,571,932,681.25/28,364,812.80
  6. Step 6: Final answer
    x = 18,284,399.60

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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.