Home / 354,399,896.78-489,071,875.92-195,630,061.76

Finding the Fourth Proportional to 354,399,896.78, 489,071,875.92 and 195,630,061.76

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Solution

The fourth proportional to 354,399,896.78, 489,071,875.92 and 195,630,061.76 is: 269,969,495.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,399,896.78 : 489,071,875.92 = 195,630,061.76 : x
  2. Step 2: Convert to fraction form
    354,399,896.78/489,071,875.92 = 195,630,061.76/x
  3. Step 3: Cross multiply
    354,399,896.78x = 489,071,875.92 × 195,630,061.76
  4. Step 4: Simplify right side
    354,399,896.78x = 95,677,161,291,308,656
  5. Step 5: Solve for x
    x = 95,677,161,291,308,656/354,399,896.78
  6. Step 6: Final answer
    x = 269,969,495.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.