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Finding the Fourth Proportional to 64,745,657.60, 97,104,489.60 and 28,353,977.60

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Solution

The fourth proportional to 64,745,657.60, 97,104,489.60 and 28,353,977.60 is: 42,524,836.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,745,657.60 : 97,104,489.60 = 28,353,977.60 : x
  2. Step 2: Convert to fraction form
    64,745,657.60/97,104,489.60 = 28,353,977.60/x
  3. Step 3: Cross multiply
    64,745,657.60x = 97,104,489.60 × 28,353,977.60
  4. Step 4: Simplify right side
    64,745,657.60x = 2,753,298,522,977,833
  5. Step 5: Solve for x
    x = 2,753,298,522,977,833/64,745,657.60
  6. Step 6: Final answer
    x = 42,524,836.80

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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.