Home / 10,890,147.90-16,340,470.65-7,688,379.90

Finding the Fourth Proportional to 10,890,147.90, 16,340,470.65 and 7,688,379.90

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Solution

The fourth proportional to 10,890,147.90, 16,340,470.65 and 7,688,379.90 is: 11,536,275.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,890,147.90 : 16,340,470.65 = 7,688,379.90 : x
  2. Step 2: Convert to fraction form
    10,890,147.90/16,340,470.65 = 7,688,379.90/x
  3. Step 3: Cross multiply
    10,890,147.90x = 16,340,470.65 × 7,688,379.90
  4. Step 4: Simplify right side
    10,890,147.90x = 125,631,746,101,999.94
  5. Step 5: Solve for x
    x = 125,631,746,101,999.94/10,890,147.90
  6. Step 6: Final answer
    x = 11,536,275.47

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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.