Home / 53,213,530.80-79,841,291.40-20,859,927.60

Finding the Fourth Proportional to 53,213,530.80, 79,841,291.40 and 20,859,927.60

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Solution

The fourth proportional to 53,213,530.80, 79,841,291.40 and 20,859,927.60 is: 31,298,121.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,213,530.80 : 79,841,291.40 = 20,859,927.60 : x
  2. Step 2: Convert to fraction form
    53,213,530.80/79,841,291.40 = 20,859,927.60/x
  3. Step 3: Cross multiply
    53,213,530.80x = 79,841,291.40 × 20,859,927.60
  4. Step 4: Simplify right side
    53,213,530.80x = 1,665,483,558,094,503
  5. Step 5: Solve for x
    x = 1,665,483,558,094,503/53,213,530.80
  6. Step 6: Final answer
    x = 31,298,121.61

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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.