Home / 27,987,889.60-42,000,496.80-12,834,020.80

Finding the Fourth Proportional to 27,987,889.60, 42,000,496.80 and 12,834,020.80

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Solution

The fourth proportional to 27,987,889.60, 42,000,496.80 and 12,834,020.80 is: 19,259,588.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,987,889.60 : 42,000,496.80 = 12,834,020.80 : x
  2. Step 2: Convert to fraction form
    27,987,889.60/42,000,496.80 = 12,834,020.80/x
  3. Step 3: Cross multiply
    27,987,889.60x = 42,000,496.80 × 12,834,020.80
  4. Step 4: Simplify right side
    27,987,889.60x = 539,035,249,541,533.44
  5. Step 5: Solve for x
    x = 539,035,249,541,533.44/27,987,889.60
  6. Step 6: Final answer
    x = 19,259,588.96

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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.