Home / 2,819,359.76-3,890,720.40-1,530,200.12

Finding the Fourth Proportional to 2,819,359.76, 3,890,720.40 and 1,530,200.12

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Solution

The fourth proportional to 2,819,359.76, 3,890,720.40 and 1,530,200.12 is: 2,111,678.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,819,359.76 : 3,890,720.40 = 1,530,200.12 : x
  2. Step 2: Convert to fraction form
    2,819,359.76/3,890,720.40 = 1,530,200.12/x
  3. Step 3: Cross multiply
    2,819,359.76x = 3,890,720.40 × 1,530,200.12
  4. Step 4: Simplify right side
    2,819,359.76x = 5,953,580,822,966.45
  5. Step 5: Solve for x
    x = 5,953,580,822,966.45/2,819,359.76
  6. Step 6: Final answer
    x = 2,111,678.30

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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.