Home / 190,230,009.40-285,433,487.70-99,456,095.80

Finding the Fourth Proportional to 190,230,009.40, 285,433,487.70 and 99,456,095.80

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Solution

The fourth proportional to 190,230,009.40, 285,433,487.70 and 99,456,095.80 is: 149,230,399.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,230,009.40 : 285,433,487.70 = 99,456,095.80 : x
  2. Step 2: Convert to fraction form
    190,230,009.40/285,433,487.70 = 99,456,095.80/x
  3. Step 3: Cross multiply
    190,230,009.40x = 285,433,487.70 × 99,456,095.80
  4. Step 4: Simplify right side
    190,230,009.40x = 28,388,100,297,219,320
  5. Step 5: Solve for x
    x = 28,388,100,297,219,320/190,230,009.40
  6. Step 6: Final answer
    x = 149,230,399.49

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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.