Home / 14,257,836.80-21,371,008.80-7,872,671.60

Finding the Fourth Proportional to 14,257,836.80, 21,371,008.80 and 7,872,671.60

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Solution

The fourth proportional to 14,257,836.80, 21,371,008.80 and 7,872,671.60 is: 11,800,312.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,257,836.80 : 21,371,008.80 = 7,872,671.60 : x
  2. Step 2: Convert to fraction form
    14,257,836.80/21,371,008.80 = 7,872,671.60/x
  3. Step 3: Cross multiply
    14,257,836.80x = 21,371,008.80 × 7,872,671.60
  4. Step 4: Simplify right side
    14,257,836.80x = 168,246,934,043,110.06
  5. Step 5: Solve for x
    x = 168,246,934,043,110.06/14,257,836.80
  6. Step 6: Final answer
    x = 11,800,312.80

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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.