Home / 18,717,811.80-28,076,717.70-5,252,890.20

Finding the Fourth Proportional to 18,717,811.80, 28,076,717.70 and 5,252,890.20

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Solution

The fourth proportional to 18,717,811.80, 28,076,717.70 and 5,252,890.20 is: 7,879,335.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,717,811.80 : 28,076,717.70 = 5,252,890.20 : x
  2. Step 2: Convert to fraction form
    18,717,811.80/28,076,717.70 = 5,252,890.20/x
  3. Step 3: Cross multiply
    18,717,811.80x = 28,076,717.70 × 5,252,890.20
  4. Step 4: Simplify right side
    18,717,811.80x = 147,483,915,254,496.53
  5. Step 5: Solve for x
    x = 147,483,915,254,496.53/18,717,811.80
  6. Step 6: Final answer
    x = 7,879,335.30

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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.