Home / 12,781,298.12-17,638,331.58-6,980,250.56

Finding the Fourth Proportional to 12,781,298.12, 17,638,331.58 and 6,980,250.56

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Solution

The fourth proportional to 12,781,298.12, 17,638,331.58 and 6,980,250.56 is: 9,632,822.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,781,298.12 : 17,638,331.58 = 6,980,250.56 : x
  2. Step 2: Convert to fraction form
    12,781,298.12/17,638,331.58 = 6,980,250.56/x
  3. Step 3: Cross multiply
    12,781,298.12x = 17,638,331.58 × 6,980,250.56
  4. Step 4: Simplify right side
    12,781,298.12x = 123,119,973,800,569.02
  5. Step 5: Solve for x
    x = 123,119,973,800,569.02/12,781,298.12
  6. Step 6: Final answer
    x = 9,632,822.32

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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.