Home / 28,975,280.20-43,462,920.30-8,781,526.60

Finding the Fourth Proportional to 28,975,280.20, 43,462,920.30 and 8,781,526.60

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Solution

The fourth proportional to 28,975,280.20, 43,462,920.30 and 8,781,526.60 is: 13,172,289.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,975,280.20 : 43,462,920.30 = 8,781,526.60 : x
  2. Step 2: Convert to fraction form
    28,975,280.20/43,462,920.30 = 8,781,526.60/x
  3. Step 3: Cross multiply
    28,975,280.20x = 43,462,920.30 × 8,781,526.60
  4. Step 4: Simplify right side
    28,975,280.20x = 381,670,790,728,129.94
  5. Step 5: Solve for x
    x = 381,670,790,728,129.94/28,975,280.20
  6. Step 6: Final answer
    x = 13,172,289.90

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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.