Home / 281,194,423.84-388,043,971.14-157,439,529.64

Finding the Fourth Proportional to 281,194,423.84, 388,043,971.14 and 157,439,529.64

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Solution

The fourth proportional to 281,194,423.84, 388,043,971.14 and 157,439,529.64 is: 217,264,124.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,194,423.84 : 388,043,971.14 = 157,439,529.64 : x
  2. Step 2: Convert to fraction form
    281,194,423.84/388,043,971.14 = 157,439,529.64/x
  3. Step 3: Cross multiply
    281,194,423.84x = 388,043,971.14 × 157,439,529.64
  4. Step 4: Simplify right side
    281,194,423.84x = 61,093,460,295,919,328
  5. Step 5: Solve for x
    x = 61,093,460,295,919,328/281,194,423.84
  6. Step 6: Final answer
    x = 217,264,124.45

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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.