Home / 18,678,173.40-28,029,069.90-11,001,803.40

Finding the Fourth Proportional to 18,678,173.40, 28,029,069.90 and 11,001,803.40

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Solution

The fourth proportional to 18,678,173.40, 28,029,069.90 and 11,001,803.40 is: 16,509,661.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,678,173.40 : 28,029,069.90 = 11,001,803.40 : x
  2. Step 2: Convert to fraction form
    18,678,173.40/28,029,069.90 = 11,001,803.40/x
  3. Step 3: Cross multiply
    18,678,173.40x = 28,029,069.90 × 11,001,803.40
  4. Step 4: Simplify right side
    18,678,173.40x = 308,370,316,524,657.62
  5. Step 5: Solve for x
    x = 308,370,316,524,657.62/18,678,173.40
  6. Step 6: Final answer
    x = 16,509,661.30

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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.