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Finding the Fourth Proportional to 64,674,132.80, 97,024,677.60 and 21,556,731.20

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Solution

The fourth proportional to 64,674,132.80, 97,024,677.60 and 21,556,731.20 is: 32,339,589.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,674,132.80 : 97,024,677.60 = 21,556,731.20 : x
  2. Step 2: Convert to fraction form
    64,674,132.80/97,024,677.60 = 21,556,731.20/x
  3. Step 3: Cross multiply
    64,674,132.80x = 97,024,677.60 × 21,556,731.20
  4. Step 4: Simplify right side
    64,674,132.80x = 2,091,534,894,789,861
  5. Step 5: Solve for x
    x = 2,091,534,894,789,861/64,674,132.80
  6. Step 6: Final answer
    x = 32,339,589.33

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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.