Home / 354,664,389.06-489,518,457.21-208,033,912.26

Finding the Fourth Proportional to 354,664,389.06, 489,518,457.21 and 208,033,912.26

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Solution

The fourth proportional to 354,664,389.06, 489,518,457.21 and 208,033,912.26 is: 287,134,662.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,664,389.06 : 489,518,457.21 = 208,033,912.26 : x
  2. Step 2: Convert to fraction form
    354,664,389.06/489,518,457.21 = 208,033,912.26/x
  3. Step 3: Cross multiply
    354,664,389.06x = 489,518,457.21 × 208,033,912.26
  4. Step 4: Simplify right side
    354,664,389.06x = 101,836,439,776,875,696
  5. Step 5: Solve for x
    x = 101,836,439,776,875,696/354,664,389.06
  6. Step 6: Final answer
    x = 287,134,662.85

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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.