Home / 190,203,295-285,402,561.92-90,605,729.60

Finding the Fourth Proportional to 190,203,295, 285,402,561.92 and 90,605,729.60

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Solution

The fourth proportional to 190,203,295, 285,402,561.92 and 90,605,729.60 is: 135,955,096.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,203,295 : 285,402,561.92 = 90,605,729.60 : x
  2. Step 2: Convert to fraction form
    190,203,295/285,402,561.92 = 90,605,729.60/x
  3. Step 3: Cross multiply
    190,203,295x = 285,402,561.92 × 90,605,729.60
  4. Step 4: Simplify right side
    190,203,295x = 25,859,107,352,470,776
  5. Step 5: Solve for x
    x = 25,859,107,352,470,776/190,203,295
  6. Step 6: Final answer
    x = 135,955,096.64

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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.