Home / 13,200,081.30-19,808,979.30-7,803,002.70

Finding the Fourth Proportional to 13,200,081.30, 19,808,979.30 and 7,803,002.70

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Solution

The fourth proportional to 13,200,081.30, 19,808,979.30 and 7,803,002.70 is: 11,709,739.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,200,081.30 : 19,808,979.30 = 7,803,002.70 : x
  2. Step 2: Convert to fraction form
    13,200,081.30/19,808,979.30 = 7,803,002.70/x
  3. Step 3: Cross multiply
    13,200,081.30x = 19,808,979.30 × 7,803,002.70
  4. Step 4: Simplify right side
    13,200,081.30x = 154,569,518,962,144.12
  5. Step 5: Solve for x
    x = 154,569,518,962,144.12/13,200,081.30
  6. Step 6: Final answer
    x = 11,709,739.92

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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.