Home / 281,194,423.48-388,043,970.06-157,439,529.28

Finding the Fourth Proportional to 281,194,423.48, 388,043,970.06 and 157,439,529.28

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Solution

The fourth proportional to 281,194,423.48, 388,043,970.06 and 157,439,529.28 is: 217,264,123.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,194,423.48 : 388,043,970.06 = 157,439,529.28 : x
  2. Step 2: Convert to fraction form
    281,194,423.48/388,043,970.06 = 157,439,529.28/x
  3. Step 3: Cross multiply
    281,194,423.48x = 388,043,970.06 × 157,439,529.28
  4. Step 4: Simplify right side
    281,194,423.48x = 61,093,459,986,188,816
  5. Step 5: Solve for x
    x = 61,093,459,986,188,816/281,194,423.48
  6. Step 6: Final answer
    x = 217,264,123.63

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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.