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Finding the Fourth Proportional to 98,384,428.80, 147,665,872.80 and 49,896,014.40

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Solution

The fourth proportional to 98,384,428.80, 147,665,872.80 and 49,896,014.40 is: 74,889,274.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,384,428.80 : 147,665,872.80 = 49,896,014.40 : x
  2. Step 2: Convert to fraction form
    98,384,428.80/147,665,872.80 = 49,896,014.40/x
  3. Step 3: Cross multiply
    98,384,428.80x = 147,665,872.80 × 49,896,014.40
  4. Step 4: Simplify right side
    98,384,428.80x = 7,367,938,515,617,369
  5. Step 5: Solve for x
    x = 7,367,938,515,617,369/98,384,428.80
  6. Step 6: Final answer
    x = 74,889,274.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.