Home / 13,165,218.32-18,163,601.13-7,657,424

Finding the Fourth Proportional to 13,165,218.32, 18,163,601.13 and 7,657,424

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Solution

The fourth proportional to 13,165,218.32, 18,163,601.13 and 7,657,424 is: 10,564,685.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,165,218.32 : 18,163,601.13 = 7,657,424 : x
  2. Step 2: Convert to fraction form
    13,165,218.32/18,163,601.13 = 7,657,424/x
  3. Step 3: Cross multiply
    13,165,218.32x = 18,163,601.13 × 7,657,424
  4. Step 4: Simplify right side
    13,165,218.32x = 139,086,395,219,289.11
  5. Step 5: Solve for x
    x = 139,086,395,219,289.11/13,165,218.32
  6. Step 6: Final answer
    x = 10,564,685.81

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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.