Home / 20,775,774.02-28,670,068.05-11,356,142.31

Finding the Fourth Proportional to 20,775,774.02, 28,670,068.05 and 11,356,142.31

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Solution

The fourth proportional to 20,775,774.02, 28,670,068.05 and 11,356,142.31 is: 15,671,203.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,775,774.02 : 28,670,068.05 = 11,356,142.31 : x
  2. Step 2: Convert to fraction form
    20,775,774.02/28,670,068.05 = 11,356,142.31/x
  3. Step 3: Cross multiply
    20,775,774.02x = 28,670,068.05 × 11,356,142.31
  4. Step 4: Simplify right side
    20,775,774.02x = 325,581,372,813,184.25
  5. Step 5: Solve for x
    x = 325,581,372,813,184.25/20,775,774.02
  6. Step 6: Final answer
    x = 15,671,203.04

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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.