Home / 53,213,454.80-79,841,177.40-20,859,851.60

Finding the Fourth Proportional to 53,213,454.80, 79,841,177.40 and 20,859,851.60

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Solution

The fourth proportional to 53,213,454.80, 79,841,177.40 and 20,859,851.60 is: 31,298,007.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,213,454.80 : 79,841,177.40 = 20,859,851.60 : x
  2. Step 2: Convert to fraction form
    53,213,454.80/79,841,177.40 = 20,859,851.60/x
  3. Step 3: Cross multiply
    53,213,454.80x = 79,841,177.40 × 20,859,851.60
  4. Step 4: Simplify right side
    53,213,454.80x = 1,665,475,112,133,274
  5. Step 5: Solve for x
    x = 1,665,475,112,133,274/53,213,454.80
  6. Step 6: Final answer
    x = 31,298,007.59

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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.