Home / 13,100,956.18-18,078,581.76-7,220,572.55

Finding the Fourth Proportional to 13,100,956.18, 18,078,581.76 and 7,220,572.55

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Solution

The fourth proportional to 13,100,956.18, 18,078,581.76 and 7,220,572.55 is: 9,963,983.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,100,956.18 : 18,078,581.76 = 7,220,572.55 : x
  2. Step 2: Convert to fraction form
    13,100,956.18/18,078,581.76 = 7,220,572.55/x
  3. Step 3: Cross multiply
    13,100,956.18x = 18,078,581.76 × 7,220,572.55
  4. Step 4: Simplify right side
    13,100,956.18x = 130,537,711,251,203.36
  5. Step 5: Solve for x
    x = 130,537,711,251,203.36/13,100,956.18
  6. Step 6: Final answer
    x = 9,963,983.50

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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.