Home / 120,384,200.10-180,576,300.15-89,728,097.70

Finding the Fourth Proportional to 120,384,200.10, 180,576,300.15 and 89,728,097.70

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Solution

The fourth proportional to 120,384,200.10, 180,576,300.15 and 89,728,097.70 is: 134,592,146.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,384,200.10 : 180,576,300.15 = 89,728,097.70 : x
  2. Step 2: Convert to fraction form
    120,384,200.10/180,576,300.15 = 89,728,097.70/x
  3. Step 3: Cross multiply
    120,384,200.10x = 180,576,300.15 × 89,728,097.70
  4. Step 4: Simplify right side
    120,384,200.10x = 16,202,767,902,163,726
  5. Step 5: Solve for x
    x = 16,202,767,902,163,726/120,384,200.10
  6. Step 6: Final answer
    x = 134,592,146.55

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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.