Home / 100,609,004.45-150,913,506.68-80,453,612.45

Finding the Fourth Proportional to 100,609,004.45, 150,913,506.68 and 80,453,612.45

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Solution

The fourth proportional to 100,609,004.45, 150,913,506.68 and 80,453,612.45 is: 120,680,418.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,609,004.45 : 150,913,506.68 = 80,453,612.45 : x
  2. Step 2: Convert to fraction form
    100,609,004.45/150,913,506.68 = 80,453,612.45/x
  3. Step 3: Cross multiply
    100,609,004.45x = 150,913,506.68 × 80,453,612.45
  4. Step 4: Simplify right side
    100,609,004.45x = 12,141,536,779,903,208
  5. Step 5: Solve for x
    x = 12,141,536,779,903,208/100,609,004.45
  6. Step 6: Final answer
    x = 120,680,418.68

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Similar ratio
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1.5x scale

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.