Home / 20,539,938.47-28,346,000.78-11,372,582.03

Finding the Fourth Proportional to 20,539,938.47, 28,346,000.78 and 11,372,582.03

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Solution

The fourth proportional to 20,539,938.47, 28,346,000.78 and 11,372,582.03 is: 15,694,653.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,539,938.47 : 28,346,000.78 = 11,372,582.03 : x
  2. Step 2: Convert to fraction form
    20,539,938.47/28,346,000.78 = 11,372,582.03/x
  3. Step 3: Cross multiply
    20,539,938.47x = 28,346,000.78 × 11,372,582.03
  4. Step 4: Simplify right side
    20,539,938.47x = 322,367,219,036,131.06
  5. Step 5: Solve for x
    x = 322,367,219,036,131.06/20,539,938.47
  6. Step 6: Final answer
    x = 15,694,653.59

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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.