Home / 18,042,979.20-27,064,468.80-12,303,416.40

Finding the Fourth Proportional to 18,042,979.20, 27,064,468.80 and 12,303,416.40

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Solution

The fourth proportional to 18,042,979.20, 27,064,468.80 and 12,303,416.40 is: 18,455,124.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,042,979.20 : 27,064,468.80 = 12,303,416.40 : x
  2. Step 2: Convert to fraction form
    18,042,979.20/27,064,468.80 = 12,303,416.40/x
  3. Step 3: Cross multiply
    18,042,979.20x = 27,064,468.80 × 12,303,416.40
  4. Step 4: Simplify right side
    18,042,979.20x = 332,985,429,291,208.31
  5. Step 5: Solve for x
    x = 332,985,429,291,208.31/18,042,979.20
  6. Step 6: Final answer
    x = 18,455,124.60

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Similar ratio
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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.