Home / 489,615,563.45-734,724,444.76-194,459,044.68

Finding the Fourth Proportional to 489,615,563.45, 734,724,444.76 and 194,459,044.68

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Solution

The fourth proportional to 489,615,563.45, 734,724,444.76 and 194,459,044.68 is: 291,808,153.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,615,563.45 : 734,724,444.76 = 194,459,044.68 : x
  2. Step 2: Convert to fraction form
    489,615,563.45/734,724,444.76 = 194,459,044.68/x
  3. Step 3: Cross multiply
    489,615,563.45x = 734,724,444.76 × 194,459,044.68
  4. Step 4: Simplify right side
    489,615,563.45x = 142,873,813,631,073,040
  5. Step 5: Solve for x
    x = 142,873,813,631,073,040/489,615,563.45
  6. Step 6: Final answer
    x = 291,808,153.78

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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.