Home / 485,095,388.80-727,643,083.20-242,670,812.80

Finding the Fourth Proportional to 485,095,388.80, 727,643,083.20 and 242,670,812.80

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Solution

The fourth proportional to 485,095,388.80, 727,643,083.20 and 242,670,812.80 is: 364,006,219.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,095,388.80 : 727,643,083.20 = 242,670,812.80 : x
  2. Step 2: Convert to fraction form
    485,095,388.80/727,643,083.20 = 242,670,812.80/x
  3. Step 3: Cross multiply
    485,095,388.80x = 727,643,083.20 × 242,670,812.80
  4. Step 4: Simplify right side
    485,095,388.80x = 176,577,738,428,442,048
  5. Step 5: Solve for x
    x = 176,577,738,428,442,048/485,095,388.80
  6. Step 6: Final answer
    x = 364,006,219.20

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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.