Home / 19,669,511.70-29,530,839.60-12,495,058.20

Finding the Fourth Proportional to 19,669,511.70, 29,530,839.60 and 12,495,058.20

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Solution

The fourth proportional to 19,669,511.70, 29,530,839.60 and 12,495,058.20 is: 18,759,467.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,669,511.70 : 29,530,839.60 = 12,495,058.20 : x
  2. Step 2: Convert to fraction form
    19,669,511.70/29,530,839.60 = 12,495,058.20/x
  3. Step 3: Cross multiply
    19,669,511.70x = 29,530,839.60 × 12,495,058.20
  4. Step 4: Simplify right side
    19,669,511.70x = 368,989,559,496,864.69
  5. Step 5: Solve for x
    x = 368,989,559,496,864.69/19,669,511.70
  6. Step 6: Final answer
    x = 18,759,467.20

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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.