Home / 281,194,422.84-388,043,969.76-157,439,528.64

Finding the Fourth Proportional to 281,194,422.84, 388,043,969.76 and 157,439,528.64

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Solution

The fourth proportional to 281,194,422.84, 388,043,969.76 and 157,439,528.64 is: 217,264,123.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,194,422.84 : 388,043,969.76 = 157,439,528.64 : x
  2. Step 2: Convert to fraction form
    281,194,422.84/388,043,969.76 = 157,439,528.64/x
  3. Step 3: Cross multiply
    281,194,422.84x = 388,043,969.76 × 157,439,528.64
  4. Step 4: Simplify right side
    281,194,422.84x = 61,093,459,690,608,808
  5. Step 5: Solve for x
    x = 61,093,459,690,608,808/281,194,422.84
  6. Step 6: Final answer
    x = 217,264,123.07

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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.