Home / 190,229,991.40-285,433,460.70-99,456,077.80

Finding the Fourth Proportional to 190,229,991.40, 285,433,460.70 and 99,456,077.80

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Solution

The fourth proportional to 190,229,991.40, 285,433,460.70 and 99,456,077.80 is: 149,230,372.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,229,991.40 : 285,433,460.70 = 99,456,077.80 : x
  2. Step 2: Convert to fraction form
    190,229,991.40/285,433,460.70 = 99,456,077.80/x
  3. Step 3: Cross multiply
    190,229,991.40x = 285,433,460.70 × 99,456,077.80
  4. Step 4: Simplify right side
    190,229,991.40x = 28,388,092,474,102,440
  5. Step 5: Solve for x
    x = 28,388,092,474,102,440/190,229,991.40
  6. Step 6: Final answer
    x = 149,230,372.48

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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.