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Finding the Fourth Proportional to 72,600,092.40, 108,804,493.80 and 53,340,495.60

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Solution

The fourth proportional to 72,600,092.40, 108,804,493.80 and 53,340,495.60 is: 79,940,471.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,600,092.40 : 108,804,493.80 = 53,340,495.60 : x
  2. Step 2: Convert to fraction form
    72,600,092.40/108,804,493.80 = 53,340,495.60/x
  3. Step 3: Cross multiply
    72,600,092.40x = 108,804,493.80 × 53,340,495.60
  4. Step 4: Simplify right side
    72,600,092.40x = 5,803,685,622,799,127
  5. Step 5: Solve for x
    x = 5,803,685,622,799,127/72,600,092.40
  6. Step 6: Final answer
    x = 79,940,471.57

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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.