Home / 12,559,893.40-18,839,840.10-12,453,605.20

Finding the Fourth Proportional to 12,559,893.40, 18,839,840.10 and 12,453,605.20

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Solution

The fourth proportional to 12,559,893.40, 18,839,840.10 and 12,453,605.20 is: 18,680,407.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,559,893.40 : 18,839,840.10 = 12,453,605.20 : x
  2. Step 2: Convert to fraction form
    12,559,893.40/18,839,840.10 = 12,453,605.20/x
  3. Step 3: Cross multiply
    12,559,893.40x = 18,839,840.10 × 12,453,605.20
  4. Step 4: Simplify right side
    12,559,893.40x = 234,623,930,636,528.53
  5. Step 5: Solve for x
    x = 234,623,930,636,528.53/12,559,893.40
  6. Step 6: Final answer
    x = 18,680,407.80

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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.