Home / 14,186,961.80-21,280,442.70-12,339,384.20

Finding the Fourth Proportional to 14,186,961.80, 21,280,442.70 and 12,339,384.20

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Solution

The fourth proportional to 14,186,961.80, 21,280,442.70 and 12,339,384.20 is: 18,509,076.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,186,961.80 : 21,280,442.70 = 12,339,384.20 : x
  2. Step 2: Convert to fraction form
    14,186,961.80/21,280,442.70 = 12,339,384.20/x
  3. Step 3: Cross multiply
    14,186,961.80x = 21,280,442.70 × 12,339,384.20
  4. Step 4: Simplify right side
    14,186,961.80x = 262,587,558,421,385.31
  5. Step 5: Solve for x
    x = 262,587,558,421,385.31/14,186,961.80
  6. Step 6: Final answer
    x = 18,509,076.30

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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.