Home / 13,317,822.46-18,381,666.20-7,812,965.77

Finding the Fourth Proportional to 13,317,822.46, 18,381,666.20 and 7,812,965.77

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Solution

The fourth proportional to 13,317,822.46, 18,381,666.20 and 7,812,965.77 is: 10,783,694.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,317,822.46 : 18,381,666.20 = 7,812,965.77 : x
  2. Step 2: Convert to fraction form
    13,317,822.46/18,381,666.20 = 7,812,965.77/x
  3. Step 3: Cross multiply
    13,317,822.46x = 18,381,666.20 × 7,812,965.77
  4. Step 4: Simplify right side
    13,317,822.46x = 143,615,328,775,094.91
  5. Step 5: Solve for x
    x = 143,615,328,775,094.91/13,317,822.46
  6. Step 6: Final answer
    x = 10,783,694.50

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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.