Home / 392,168,065.07-587,701,537.35-309,925,395.47

Finding the Fourth Proportional to 392,168,065.07, 587,701,537.35 and 309,925,395.47

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Solution

The fourth proportional to 392,168,065.07, 587,701,537.35 and 309,925,395.47 is: 464,452,992.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,168,065.07 : 587,701,537.35 = 309,925,395.47 : x
  2. Step 2: Convert to fraction form
    392,168,065.07/587,701,537.35 = 309,925,395.47/x
  3. Step 3: Cross multiply
    392,168,065.07x = 587,701,537.35 × 309,925,395.47
  4. Step 4: Simplify right side
    392,168,065.07x = 182,143,631,378,587,200
  5. Step 5: Solve for x
    x = 182,143,631,378,587,200/392,168,065.07
  6. Step 6: Final answer
    x = 464,452,992.49

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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.