Home / 20,902,053.48-31,357,117.88-7,947,196.88

Finding the Fourth Proportional to 20,902,053.48, 31,357,117.88 and 7,947,196.88

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Solution

The fourth proportional to 20,902,053.48, 31,357,117.88 and 7,947,196.88 is: 11,922,330.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,902,053.48 : 31,357,117.88 = 7,947,196.88 : x
  2. Step 2: Convert to fraction form
    20,902,053.48/31,357,117.88 = 7,947,196.88/x
  3. Step 3: Cross multiply
    20,902,053.48x = 31,357,117.88 × 7,947,196.88
  4. Step 4: Simplify right side
    20,902,053.48x = 249,201,189,185,206.62
  5. Step 5: Solve for x
    x = 249,201,189,185,206.62/20,902,053.48
  6. Step 6: Final answer
    x = 11,922,330.47

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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.