Home / 20,902,059.48-31,357,126.89-7,947,202.89

Finding the Fourth Proportional to 20,902,059.48, 31,357,126.89 and 7,947,202.89

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Solution

The fourth proportional to 20,902,059.48, 31,357,126.89 and 7,947,202.89 is: 11,922,339.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,902,059.48 : 31,357,126.89 = 7,947,202.89 : x
  2. Step 2: Convert to fraction form
    20,902,059.48/31,357,126.89 = 7,947,202.89/x
  3. Step 3: Cross multiply
    20,902,059.48x = 31,357,126.89 × 7,947,202.89
  4. Step 4: Simplify right side
    20,902,059.48x = 249,201,449,442,304.72
  5. Step 5: Solve for x
    x = 249,201,449,442,304.72/20,902,059.48
  6. Step 6: Final answer
    x = 11,922,339.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.