Home / 16,128,421.40-24,192,632.10-7,170,469.40

Finding the Fourth Proportional to 16,128,421.40, 24,192,632.10 and 7,170,469.40

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Solution

The fourth proportional to 16,128,421.40, 24,192,632.10 and 7,170,469.40 is: 10,755,704.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,128,421.40 : 24,192,632.10 = 7,170,469.40 : x
  2. Step 2: Convert to fraction form
    16,128,421.40/24,192,632.10 = 7,170,469.40/x
  3. Step 3: Cross multiply
    16,128,421.40x = 24,192,632.10 × 7,170,469.40
  4. Step 4: Simplify right side
    16,128,421.40x = 173,472,528,178,507.75
  5. Step 5: Solve for x
    x = 173,472,528,178,507.75/16,128,421.40
  6. Step 6: Final answer
    x = 10,755,704.10

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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.