Home / 18,689,418.92-25,791,349.92-10,429,395.32

Finding the Fourth Proportional to 18,689,418.92, 25,791,349.92 and 10,429,395.32

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Solution

The fourth proportional to 18,689,418.92, 25,791,349.92 and 10,429,395.32 is: 14,392,538.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,689,418.92 : 25,791,349.92 = 10,429,395.32 : x
  2. Step 2: Convert to fraction form
    18,689,418.92/25,791,349.92 = 10,429,395.32/x
  3. Step 3: Cross multiply
    18,689,418.92x = 25,791,349.92 × 10,429,395.32
  4. Step 4: Simplify right side
    18,689,418.92x = 268,988,184,152,130.41
  5. Step 5: Solve for x
    x = 268,988,184,152,130.41/18,689,418.92
  6. Step 6: Final answer
    x = 14,392,538.65

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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.