Home / 8,143,530.81-12,215,285.88-2,078,262.66

Finding the Fourth Proportional to 8,143,530.81, 12,215,285.88 and 2,078,262.66

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Solution

The fourth proportional to 8,143,530.81, 12,215,285.88 and 2,078,262.66 is: 3,117,391.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,143,530.81 : 12,215,285.88 = 2,078,262.66 : x
  2. Step 2: Convert to fraction form
    8,143,530.81/12,215,285.88 = 2,078,262.66/x
  3. Step 3: Cross multiply
    8,143,530.81x = 12,215,285.88 × 2,078,262.66
  4. Step 4: Simplify right side
    8,143,530.81x = 25,386,572,525,629.24
  5. Step 5: Solve for x
    x = 25,386,572,525,629.24/8,143,530.81
  6. Step 6: Final answer
    x = 3,117,391.35

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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.