Home / 279,816,838.57-419,163,146.92-139,334,065.25

Finding the Fourth Proportional to 279,816,838.57, 419,163,146.92 and 139,334,065.25

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Solution

The fourth proportional to 279,816,838.57, 419,163,146.92 and 139,334,065.25 is: 208,721,196.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,816,838.57 : 419,163,146.92 = 139,334,065.25 : x
  2. Step 2: Convert to fraction form
    279,816,838.57/419,163,146.92 = 139,334,065.25/x
  3. Step 3: Cross multiply
    279,816,838.57x = 419,163,146.92 × 139,334,065.25
  4. Step 4: Simplify right side
    279,816,838.57x = 58,403,705,260,641,912
  5. Step 5: Solve for x
    x = 58,403,705,260,641,912/279,816,838.57
  6. Step 6: Final answer
    x = 208,721,196.19

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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.