Home / 20,736,046.40-31,104,069.60-19,475,297.60

Finding the Fourth Proportional to 20,736,046.40, 31,104,069.60 and 19,475,297.60

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Solution

The fourth proportional to 20,736,046.40, 31,104,069.60 and 19,475,297.60 is: 29,212,946.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736,046.40 : 31,104,069.60 = 19,475,297.60 : x
  2. Step 2: Convert to fraction form
    20,736,046.40/31,104,069.60 = 19,475,297.60/x
  3. Step 3: Cross multiply
    20,736,046.40x = 31,104,069.60 × 19,475,297.60
  4. Step 4: Simplify right side
    20,736,046.40x = 605,761,012,031,113
  5. Step 5: Solve for x
    x = 605,761,012,031,113/20,736,046.40
  6. Step 6: Final answer
    x = 29,212,946.40

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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.