Home / 21,339,979.79-32,011,394.90-7,505,278.43

Finding the Fourth Proportional to 21,339,979.79, 32,011,394.90 and 7,505,278.43

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Solution

The fourth proportional to 21,339,979.79, 32,011,394.90 and 7,505,278.43 is: 11,258,418.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,339,979.79 : 32,011,394.90 = 7,505,278.43 : x
  2. Step 2: Convert to fraction form
    21,339,979.79/32,011,394.90 = 7,505,278.43/x
  3. Step 3: Cross multiply
    21,339,979.79x = 32,011,394.90 × 7,505,278.43
  4. Step 4: Simplify right side
    21,339,979.79x = 240,254,431,459,598.62
  5. Step 5: Solve for x
    x = 240,254,431,459,598.62/21,339,979.79
  6. Step 6: Final answer
    x = 11,258,418.89

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1.5x scale

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.