Home / 47,894,028.80-71,841,043.20-21,020,172.80

Finding the Fourth Proportional to 47,894,028.80, 71,841,043.20 and 21,020,172.80

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Solution

The fourth proportional to 47,894,028.80, 71,841,043.20 and 21,020,172.80 is: 31,530,259.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,894,028.80 : 71,841,043.20 = 21,020,172.80 : x
  2. Step 2: Convert to fraction form
    47,894,028.80/71,841,043.20 = 21,020,172.80/x
  3. Step 3: Cross multiply
    47,894,028.80x = 71,841,043.20 × 21,020,172.80
  4. Step 4: Simplify right side
    47,894,028.80x = 1,510,111,142,196,265
  5. Step 5: Solve for x
    x = 1,510,111,142,196,265/47,894,028.80
  6. Step 6: Final answer
    x = 31,530,259.20

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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.