Home / 7,340,705.80-10,129,830.90-4,077,730.60

Finding the Fourth Proportional to 7,340,705.80, 10,129,830.90 and 4,077,730.60

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Solution

The fourth proportional to 7,340,705.80, 10,129,830.90 and 4,077,730.60 is: 5,627,077.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,340,705.80 : 10,129,830.90 = 4,077,730.60 : x
  2. Step 2: Convert to fraction form
    7,340,705.80/10,129,830.90 = 4,077,730.60/x
  3. Step 3: Cross multiply
    7,340,705.80x = 10,129,830.90 × 4,077,730.60
  4. Step 4: Simplify right side
    7,340,705.80x = 41,306,721,433,755.54
  5. Step 5: Solve for x
    x = 41,306,721,433,755.54/7,340,705.80
  6. Step 6: Final answer
    x = 5,627,077.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.