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Finding the Fourth Proportional to 69,569,801.60, 104,354,702.40 and 43,703,715.20

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Solution

The fourth proportional to 69,569,801.60, 104,354,702.40 and 43,703,715.20 is: 65,555,572.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,569,801.60 : 104,354,702.40 = 43,703,715.20 : x
  2. Step 2: Convert to fraction form
    69,569,801.60/104,354,702.40 = 43,703,715.20/x
  3. Step 3: Cross multiply
    69,569,801.60x = 104,354,702.40 × 43,703,715.20
  4. Step 4: Simplify right side
    69,569,801.60x = 4,560,688,193,470,357
  5. Step 5: Solve for x
    x = 4,560,688,193,470,357/69,569,801.60
  6. Step 6: Final answer
    x = 65,555,572.80

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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.