Home / 18,381,678.80-27,572,518.20-8,815,740.80

Finding the Fourth Proportional to 18,381,678.80, 27,572,518.20 and 8,815,740.80

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Solution

The fourth proportional to 18,381,678.80, 27,572,518.20 and 8,815,740.80 is: 13,223,611.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,381,678.80 : 27,572,518.20 = 8,815,740.80 : x
  2. Step 2: Convert to fraction form
    18,381,678.80/27,572,518.20 = 8,815,740.80/x
  3. Step 3: Cross multiply
    18,381,678.80x = 27,572,518.20 × 8,815,740.80
  4. Step 4: Simplify right side
    18,381,678.80x = 243,072,173,654,482.56
  5. Step 5: Solve for x
    x = 243,072,173,654,482.56/18,381,678.80
  6. Step 6: Final answer
    x = 13,223,611.20

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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.