Home / 13,156,416.10-19,722,182.55-7,769,203.30

Finding the Fourth Proportional to 13,156,416.10, 19,722,182.55 and 7,769,203.30

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Solution

The fourth proportional to 13,156,416.10, 19,722,182.55 and 7,769,203.30 is: 11,646,457.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,156,416.10 : 19,722,182.55 = 7,769,203.30 : x
  2. Step 2: Convert to fraction form
    13,156,416.10/19,722,182.55 = 7,769,203.30/x
  3. Step 3: Cross multiply
    13,156,416.10x = 19,722,182.55 × 7,769,203.30
  4. Step 4: Simplify right side
    13,156,416.10x = 153,225,645,750,662.41
  5. Step 5: Solve for x
    x = 153,225,645,750,662.41/13,156,416.10
  6. Step 6: Final answer
    x = 11,646,457.86

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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.