Home / 20,539,476.02-28,345,362.54-11,372,118.50

Finding the Fourth Proportional to 20,539,476.02, 28,345,362.54 and 11,372,118.50

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Solution

The fourth proportional to 20,539,476.02, 28,345,362.54 and 11,372,118.50 is: 15,694,013.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,539,476.02 : 28,345,362.54 = 11,372,118.50 : x
  2. Step 2: Convert to fraction form
    20,539,476.02/28,345,362.54 = 11,372,118.50/x
  3. Step 3: Cross multiply
    20,539,476.02x = 28,345,362.54 × 11,372,118.50
  4. Step 4: Simplify right side
    20,539,476.02x = 322,346,821,730,341
  5. Step 5: Solve for x
    x = 322,346,821,730,341/20,539,476.02
  6. Step 6: Final answer
    x = 15,694,013.88

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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.