Home / 8,406,171.60-12,618,588.60-5,214,901.20

Finding the Fourth Proportional to 8,406,171.60, 12,618,588.60 and 5,214,901.20

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Solution

The fourth proportional to 8,406,171.60, 12,618,588.60 and 5,214,901.20 is: 7,828,140.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,406,171.60 : 12,618,588.60 = 5,214,901.20 : x
  2. Step 2: Convert to fraction form
    8,406,171.60/12,618,588.60 = 5,214,901.20/x
  3. Step 3: Cross multiply
    8,406,171.60x = 12,618,588.60 × 5,214,901.20
  4. Step 4: Simplify right side
    8,406,171.60x = 65,804,692,832,446.32
  5. Step 5: Solve for x
    x = 65,804,692,832,446.32/8,406,171.60
  6. Step 6: Final answer
    x = 7,828,140.56

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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.