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Finding the Fourth Proportional to 608,805,112.80, 911,696,014.80 and 487,872,760.80

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Solution

The fourth proportional to 608,805,112.80, 911,696,014.80 and 487,872,760.80 is: 730,597,760.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,805,112.80 : 911,696,014.80 = 487,872,760.80 : x
  2. Step 2: Convert to fraction form
    608,805,112.80/911,696,014.80 = 487,872,760.80/x
  3. Step 3: Cross multiply
    608,805,112.80x = 911,696,014.80 × 487,872,760.80
  4. Step 4: Simplify right side
    608,805,112.80x = 444,791,651,750,833,664
  5. Step 5: Solve for x
    x = 444,791,651,750,833,664/608,805,112.80
  6. Step 6: Final answer
    x = 730,597,760.10

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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.