Home / 20,152,182.78-27,808,962.93-11,449,147.50

Finding the Fourth Proportional to 20,152,182.78, 27,808,962.93 and 11,449,147.50

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Solution

The fourth proportional to 20,152,182.78, 27,808,962.93 and 11,449,147.50 is: 15,799,227.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,152,182.78 : 27,808,962.93 = 11,449,147.50 : x
  2. Step 2: Convert to fraction form
    20,152,182.78/27,808,962.93 = 11,449,147.50/x
  3. Step 3: Cross multiply
    20,152,182.78x = 27,808,962.93 × 11,449,147.50
  4. Step 4: Simplify right side
    20,152,182.78x = 318,388,918,407,602.19
  5. Step 5: Solve for x
    x = 318,388,918,407,602.19/20,152,182.78
  6. Step 6: Final answer
    x = 15,799,227.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.