Home / 399,178,775.60-598,768,163.40-393,804,004.40

Finding the Fourth Proportional to 399,178,775.60, 598,768,163.40 and 393,804,004.40

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Solution

The fourth proportional to 399,178,775.60, 598,768,163.40 and 393,804,004.40 is: 590,706,006.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,178,775.60 : 598,768,163.40 = 393,804,004.40 : x
  2. Step 2: Convert to fraction form
    399,178,775.60/598,768,163.40 = 393,804,004.40/x
  3. Step 3: Cross multiply
    399,178,775.60x = 598,768,163.40 × 393,804,004.40
  4. Step 4: Simplify right side
    399,178,775.60x = 235,797,300,454,153,504
  5. Step 5: Solve for x
    x = 235,797,300,454,153,504/399,178,775.60
  6. Step 6: Final answer
    x = 590,706,006.60

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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.