Home / 57,203,938.80-85,839,085.80-21,305,775.60

Finding the Fourth Proportional to 57,203,938.80, 85,839,085.80 and 21,305,775.60

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Solution

The fourth proportional to 57,203,938.80, 85,839,085.80 and 21,305,775.60 is: 31,971,020.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,203,938.80 : 85,839,085.80 = 21,305,775.60 : x
  2. Step 2: Convert to fraction form
    57,203,938.80/85,839,085.80 = 21,305,775.60/x
  3. Step 3: Cross multiply
    57,203,938.80x = 85,839,085.80 × 21,305,775.60
  4. Step 4: Simplify right side
    57,203,938.80x = 1,828,868,299,763,946.50
  5. Step 5: Solve for x
    x = 1,828,868,299,763,946.50/57,203,938.80
  6. Step 6: Final answer
    x = 31,971,020.49

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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.