Home / 717,545,552.80-1,076,318,329.20-390,177,896.80

Finding the Fourth Proportional to 717,545,552.80, 1,076,318,329.20 and 390,177,896.80

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Solution

The fourth proportional to 717,545,552.80, 1,076,318,329.20 and 390,177,896.80 is: 585,266,845.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,545,552.80 : 1,076,318,329.20 = 390,177,896.80 : x
  2. Step 2: Convert to fraction form
    717,545,552.80/1,076,318,329.20 = 390,177,896.80/x
  3. Step 3: Cross multiply
    717,545,552.80x = 1,076,318,329.20 × 390,177,896.80
  4. Step 4: Simplify right side
    717,545,552.80x = 419,955,621,974,546,048
  5. Step 5: Solve for x
    x = 419,955,621,974,546,048/717,545,552.80
  6. Step 6: Final answer
    x = 585,266,845.20

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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.