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Finding the Fourth Proportional to 64,653,865.60, 97,028,037.60 and 45,521,989.60

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Solution

The fourth proportional to 64,653,865.60, 97,028,037.60 and 45,521,989.60 is: 68,316,244.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,653,865.60 : 97,028,037.60 = 45,521,989.60 : x
  2. Step 2: Convert to fraction form
    64,653,865.60/97,028,037.60 = 45,521,989.60/x
  3. Step 3: Cross multiply
    64,653,865.60x = 97,028,037.60 × 45,521,989.60
  4. Step 4: Simplify right side
    64,653,865.60x = 4,416,909,318,535,609
  5. Step 5: Solve for x
    x = 4,416,909,318,535,609/64,653,865.60
  6. Step 6: Final answer
    x = 68,316,244.94

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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.