Home / 20,539,830.53-28,345,851.51-11,372,473.28

Finding the Fourth Proportional to 20,539,830.53, 28,345,851.51 and 11,372,473.28

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Solution

The fourth proportional to 20,539,830.53, 28,345,851.51 and 11,372,473.28 is: 15,694,503.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,539,830.53 : 28,345,851.51 = 11,372,473.28 : x
  2. Step 2: Convert to fraction form
    20,539,830.53/28,345,851.51 = 11,372,473.28/x
  3. Step 3: Cross multiply
    20,539,830.53x = 28,345,851.51 × 11,372,473.28
  4. Step 4: Simplify right side
    20,539,830.53x = 322,362,438,896,322.62
  5. Step 5: Solve for x
    x = 322,362,438,896,322.62/20,539,830.53
  6. Step 6: Final answer
    x = 15,694,503.34

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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.