Home / 80,586,864.40-120,880,296.60-68,115,715.60

Finding the Fourth Proportional to 80,586,864.40, 120,880,296.60 and 68,115,715.60

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Solution

The fourth proportional to 80,586,864.40, 120,880,296.60 and 68,115,715.60 is: 102,173,573.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,586,864.40 : 120,880,296.60 = 68,115,715.60 : x
  2. Step 2: Convert to fraction form
    80,586,864.40/120,880,296.60 = 68,115,715.60/x
  3. Step 3: Cross multiply
    80,586,864.40x = 120,880,296.60 × 68,115,715.60
  4. Step 4: Simplify right side
    80,586,864.40x = 8,233,847,904,849,246
  5. Step 5: Solve for x
    x = 8,233,847,904,849,246/80,586,864.40
  6. Step 6: Final answer
    x = 102,173,573.40

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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.