Home / 190,219,018.05-285,238,581.87-73,688,953.54

Finding the Fourth Proportional to 190,219,018.05, 285,238,581.87 and 73,688,953.54

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Solution

The fourth proportional to 190,219,018.05, 285,238,581.87 and 73,688,953.54 is: 110,498,586.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,219,018.05 : 285,238,581.87 = 73,688,953.54 : x
  2. Step 2: Convert to fraction form
    190,219,018.05/285,238,581.87 = 73,688,953.54/x
  3. Step 3: Cross multiply
    190,219,018.05x = 285,238,581.87 × 73,688,953.54
  4. Step 4: Simplify right side
    190,219,018.05x = 21,018,932,607,233,920
  5. Step 5: Solve for x
    x = 21,018,932,607,233,920/190,219,018.05
  6. Step 6: Final answer
    x = 110,498,586.43

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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.