Home / 18,535,420.80-27,811,425.60-8,432,841.60

Finding the Fourth Proportional to 18,535,420.80, 27,811,425.60 and 8,432,841.60

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Solution

The fourth proportional to 18,535,420.80, 27,811,425.60 and 8,432,841.60 is: 12,653,036.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,535,420.80 : 27,811,425.60 = 8,432,841.60 : x
  2. Step 2: Convert to fraction form
    18,535,420.80/27,811,425.60 = 8,432,841.60/x
  3. Step 3: Cross multiply
    18,535,420.80x = 27,811,425.60 × 8,432,841.60
  4. Step 4: Simplify right side
    18,535,420.80x = 234,529,346,754,984.97
  5. Step 5: Solve for x
    x = 234,529,346,754,984.97/18,535,420.80
  6. Step 6: Final answer
    x = 12,653,036.01

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Double scale
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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.