Home / 5,120,653.11-7,678,333.39-1,881,363.48

Finding the Fourth Proportional to 5,120,653.11, 7,678,333.39 and 1,881,363.48

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Solution

The fourth proportional to 5,120,653.11, 7,678,333.39 and 1,881,363.48 is: 2,821,072.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,120,653.11 : 7,678,333.39 = 1,881,363.48 : x
  2. Step 2: Convert to fraction form
    5,120,653.11/7,678,333.39 = 1,881,363.48/x
  3. Step 3: Cross multiply
    5,120,653.11x = 7,678,333.39 × 1,881,363.48
  4. Step 4: Simplify right side
    5,120,653.11x = 14,445,736,027,210.60
  5. Step 5: Solve for x
    x = 14,445,736,027,210.60/5,120,653.11
  6. Step 6: Final answer
    x = 2,821,072.96

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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.