Home / 127,982,991.84-176,621,541.42-72,230,359.74

Finding the Fourth Proportional to 127,982,991.84, 176,621,541.42 and 72,230,359.74

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Solution

The fourth proportional to 127,982,991.84, 176,621,541.42 and 72,230,359.74 is: 99,680,725.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,982,991.84 : 176,621,541.42 = 72,230,359.74 : x
  2. Step 2: Convert to fraction form
    127,982,991.84/176,621,541.42 = 72,230,359.74/x
  3. Step 3: Cross multiply
    127,982,991.84x = 176,621,541.42 × 72,230,359.74
  4. Step 4: Simplify right side
    127,982,991.84x = 12,757,437,474,599,908
  5. Step 5: Solve for x
    x = 12,757,437,474,599,908/127,982,991.84
  6. Step 6: Final answer
    x = 99,680,725.47

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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.