Home / 18,989,421.27-28,484,132.26-4,612,392.19

Finding the Fourth Proportional to 18,989,421.27, 28,484,132.26 and 4,612,392.19

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Solution

The fourth proportional to 18,989,421.27, 28,484,132.26 and 4,612,392.19 is: 6,918,588.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,989,421.27 : 28,484,132.26 = 4,612,392.19 : x
  2. Step 2: Convert to fraction form
    18,989,421.27/28,484,132.26 = 4,612,392.19/x
  3. Step 3: Cross multiply
    18,989,421.27x = 28,484,132.26 × 4,612,392.19
  4. Step 4: Simplify right side
    18,989,421.27x = 131,379,989,032,530.39
  5. Step 5: Solve for x
    x = 131,379,989,032,530.39/18,989,421.27
  6. Step 6: Final answer
    x = 6,918,588.36

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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.