Home / 67,260,085.80-100,890,128.70-18,745,427.40

Finding the Fourth Proportional to 67,260,085.80, 100,890,128.70 and 18,745,427.40

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Solution

The fourth proportional to 67,260,085.80, 100,890,128.70 and 18,745,427.40 is: 28,118,141.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,260,085.80 : 100,890,128.70 = 18,745,427.40 : x
  2. Step 2: Convert to fraction form
    67,260,085.80/100,890,128.70 = 18,745,427.40/x
  3. Step 3: Cross multiply
    67,260,085.80x = 100,890,128.70 × 18,745,427.40
  4. Step 4: Simplify right side
    67,260,085.80x = 1,891,228,582,922,506.25
  5. Step 5: Solve for x
    x = 1,891,228,582,922,506.25/67,260,085.80
  6. Step 6: Final answer
    x = 28,118,141.10

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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.