Home / 10,728,515.60-16,071,778.20-6,455,992.40

Finding the Fourth Proportional to 10,728,515.60, 16,071,778.20 and 6,455,992.40

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Solution

The fourth proportional to 10,728,515.60, 16,071,778.20 and 6,455,992.40 is: 9,671,354.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,728,515.60 : 16,071,778.20 = 6,455,992.40 : x
  2. Step 2: Convert to fraction form
    10,728,515.60/16,071,778.20 = 6,455,992.40/x
  3. Step 3: Cross multiply
    10,728,515.60x = 16,071,778.20 × 6,455,992.40
  4. Step 4: Simplify right side
    10,728,515.60x = 103,759,277,913,685.69
  5. Step 5: Solve for x
    x = 103,759,277,913,685.69/10,728,515.60
  6. Step 6: Final answer
    x = 9,671,354.53

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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.