Home / 281,194,423.98-388,043,970.75-157,439,529.78

Finding the Fourth Proportional to 281,194,423.98, 388,043,970.75 and 157,439,529.78

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Solution

The fourth proportional to 281,194,423.98, 388,043,970.75 and 157,439,529.78 is: 217,264,124.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,194,423.98 : 388,043,970.75 = 157,439,529.78 : x
  2. Step 2: Convert to fraction form
    281,194,423.98/388,043,970.75 = 157,439,529.78/x
  3. Step 3: Cross multiply
    281,194,423.98x = 388,043,970.75 × 157,439,529.78
  4. Step 4: Simplify right side
    281,194,423.98x = 61,093,460,288,844,072
  5. Step 5: Solve for x
    x = 61,093,460,288,844,072/281,194,423.98
  6. Step 6: Final answer
    x = 217,264,124.32

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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.