Home / 12,872,132.80-19,308,199.20-3,896,684.80

Finding the Fourth Proportional to 12,872,132.80, 19,308,199.20 and 3,896,684.80

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Solution

The fourth proportional to 12,872,132.80, 19,308,199.20 and 3,896,684.80 is: 5,845,027.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,872,132.80 : 19,308,199.20 = 3,896,684.80 : x
  2. Step 2: Convert to fraction form
    12,872,132.80/19,308,199.20 = 3,896,684.80/x
  3. Step 3: Cross multiply
    12,872,132.80x = 19,308,199.20 × 3,896,684.80
  4. Step 4: Simplify right side
    12,872,132.80x = 75,237,966,338,012.16
  5. Step 5: Solve for x
    x = 75,237,966,338,012.16/12,872,132.80
  6. Step 6: Final answer
    x = 5,845,027.20

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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.