Home / 18,288,911.80-27,433,367.70-9,218,985.40

Finding the Fourth Proportional to 18,288,911.80, 27,433,367.70 and 9,218,985.40

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Solution

The fourth proportional to 18,288,911.80, 27,433,367.70 and 9,218,985.40 is: 13,828,478.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,288,911.80 : 27,433,367.70 = 9,218,985.40 : x
  2. Step 2: Convert to fraction form
    18,288,911.80/27,433,367.70 = 9,218,985.40/x
  3. Step 3: Cross multiply
    18,288,911.80x = 27,433,367.70 × 9,218,985.40
  4. Step 4: Simplify right side
    18,288,911.80x = 252,907,816,299,131.59
  5. Step 5: Solve for x
    x = 252,907,816,299,131.59/18,288,911.80
  6. Step 6: Final answer
    x = 13,828,478.10

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1.5x scale

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.