Home / 14,257,688.40-21,386,532.60-12,690,046.80

Finding the Fourth Proportional to 14,257,688.40, 21,386,532.60 and 12,690,046.80

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Solution

The fourth proportional to 14,257,688.40, 21,386,532.60 and 12,690,046.80 is: 19,035,070.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,257,688.40 : 21,386,532.60 = 12,690,046.80 : x
  2. Step 2: Convert to fraction form
    14,257,688.40/21,386,532.60 = 12,690,046.80/x
  3. Step 3: Cross multiply
    14,257,688.40x = 21,386,532.60 × 12,690,046.80
  4. Step 4: Simplify right side
    14,257,688.40x = 271,396,099,583,725.72
  5. Step 5: Solve for x
    x = 271,396,099,583,725.72/14,257,688.40
  6. Step 6: Final answer
    x = 19,035,070.20

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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.