Home / 190,738,181.47-285,724,194.78-86,964,638.50

Finding the Fourth Proportional to 190,738,181.47, 285,724,194.78 and 86,964,638.50

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Solution

The fourth proportional to 190,738,181.47, 285,724,194.78 and 86,964,638.50 is: 130,272,298.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,738,181.47 : 285,724,194.78 = 86,964,638.50 : x
  2. Step 2: Convert to fraction form
    190,738,181.47/285,724,194.78 = 86,964,638.50/x
  3. Step 3: Cross multiply
    190,738,181.47x = 285,724,194.78 × 86,964,638.50
  4. Step 4: Simplify right side
    190,738,181.47x = 24,847,901,308,317,664
  5. Step 5: Solve for x
    x = 24,847,901,308,317,664/190,738,181.47
  6. Step 6: Final answer
    x = 130,272,298.48

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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.