Home / 13,285,003.28-18,333,223.08-7,485,652.88

Finding the Fourth Proportional to 13,285,003.28, 18,333,223.08 and 7,485,652.88

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Solution

The fourth proportional to 13,285,003.28, 18,333,223.08 and 7,485,652.88 is: 10,330,155.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,285,003.28 : 18,333,223.08 = 7,485,652.88 : x
  2. Step 2: Convert to fraction form
    13,285,003.28/18,333,223.08 = 7,485,652.88/x
  3. Step 3: Cross multiply
    13,285,003.28x = 18,333,223.08 × 7,485,652.88
  4. Step 4: Simplify right side
    13,285,003.28x = 137,236,144,148,484.45
  5. Step 5: Solve for x
    x = 137,236,144,148,484.45/13,285,003.28
  6. Step 6: Final answer
    x = 10,330,155.08

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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.