Home / 12,559,909.40-18,839,864.10-12,453,621.20

Finding the Fourth Proportional to 12,559,909.40, 18,839,864.10 and 12,453,621.20

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Solution

The fourth proportional to 12,559,909.40, 18,839,864.10 and 12,453,621.20 is: 18,680,431.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,559,909.40 : 18,839,864.10 = 12,453,621.20 : x
  2. Step 2: Convert to fraction form
    12,559,909.40/18,839,864.10 = 12,453,621.20/x
  3. Step 3: Cross multiply
    12,559,909.40x = 18,839,864.10 × 12,453,621.20
  4. Step 4: Simplify right side
    12,559,909.40x = 234,624,530,960,878.94
  5. Step 5: Solve for x
    x = 234,624,530,960,878.94/12,559,909.40
  6. Step 6: Final answer
    x = 18,680,431.80

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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.