Home / 210,448,562.40-315,665,728.56-74,130,383.52

Finding the Fourth Proportional to 210,448,562.40, 315,665,728.56 and 74,130,383.52

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Solution

The fourth proportional to 210,448,562.40, 315,665,728.56 and 74,130,383.52 is: 111,193,069.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,448,562.40 : 315,665,728.56 = 74,130,383.52 : x
  2. Step 2: Convert to fraction form
    210,448,562.40/315,665,728.56 = 74,130,383.52/x
  3. Step 3: Cross multiply
    210,448,562.40x = 315,665,728.56 × 74,130,383.52
  4. Step 4: Simplify right side
    210,448,562.40x = 23,400,421,522,273,016
  5. Step 5: Solve for x
    x = 23,400,421,522,273,016/210,448,562.40
  6. Step 6: Final answer
    x = 111,193,069.01

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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.