Home / 18,378,005.80-27,567,008.70-12,213,290.20

Finding the Fourth Proportional to 18,378,005.80, 27,567,008.70 and 12,213,290.20

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Solution

The fourth proportional to 18,378,005.80, 27,567,008.70 and 12,213,290.20 is: 18,319,935.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,378,005.80 : 27,567,008.70 = 12,213,290.20 : x
  2. Step 2: Convert to fraction form
    18,378,005.80/27,567,008.70 = 12,213,290.20/x
  3. Step 3: Cross multiply
    18,378,005.80x = 27,567,008.70 × 12,213,290.20
  4. Step 4: Simplify right side
    18,378,005.80x = 336,683,877,199,024.69
  5. Step 5: Solve for x
    x = 336,683,877,199,024.69/18,378,005.80
  6. Step 6: Final answer
    x = 18,319,935.30

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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.