Home / 39,958,071.04-55,142,140.80-21,623,357.44

Finding the Fourth Proportional to 39,958,071.04, 55,142,140.80 and 21,623,357.44

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Solution

The fourth proportional to 39,958,071.04, 55,142,140.80 and 21,623,357.44 is: 29,840,234.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,958,071.04 : 55,142,140.80 = 21,623,357.44 : x
  2. Step 2: Convert to fraction form
    39,958,071.04/55,142,140.80 = 21,623,357.44/x
  3. Step 3: Cross multiply
    39,958,071.04x = 55,142,140.80 × 21,623,357.44
  4. Step 4: Simplify right side
    39,958,071.04x = 1,192,358,220,525,207.50
  5. Step 5: Solve for x
    x = 1,192,358,220,525,207.50/39,958,071.04
  6. Step 6: Final answer
    x = 29,840,234.76

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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.