Home / 105,256,286.86-145,298,400.74-65,583,418.82

Finding the Fourth Proportional to 105,256,286.86, 145,298,400.74 and 65,583,418.82

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Solution

The fourth proportional to 105,256,286.86, 145,298,400.74 and 65,583,418.82 is: 90,532,985.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,256,286.86 : 145,298,400.74 = 65,583,418.82 : x
  2. Step 2: Convert to fraction form
    105,256,286.86/145,298,400.74 = 65,583,418.82/x
  3. Step 3: Cross multiply
    105,256,286.86x = 145,298,400.74 × 65,583,418.82
  4. Step 4: Simplify right side
    105,256,286.86x = 9,529,165,869,344,016
  5. Step 5: Solve for x
    x = 9,529,165,869,344,016/105,256,286.86
  6. Step 6: Final answer
    x = 90,532,985.28

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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.