Home / 20,902,056.98-31,357,123.13-7,947,200.39

Finding the Fourth Proportional to 20,902,056.98, 31,357,123.13 and 7,947,200.39

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Solution

The fourth proportional to 20,902,056.98, 31,357,123.13 and 7,947,200.39 is: 11,922,335.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,902,056.98 : 31,357,123.13 = 7,947,200.39 : x
  2. Step 2: Convert to fraction form
    20,902,056.98/31,357,123.13 = 7,947,200.39/x
  3. Step 3: Cross multiply
    20,902,056.98x = 31,357,123.13 × 7,947,200.39
  4. Step 4: Simplify right side
    20,902,056.98x = 249,201,341,031,096.41
  5. Step 5: Solve for x
    x = 249,201,341,031,096.41/20,902,056.98
  6. Step 6: Final answer
    x = 11,922,335.75

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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.