Home / 426,492,021.83-639,738,032.74-349,007,924.03

Finding the Fourth Proportional to 426,492,021.83, 639,738,032.74 and 349,007,924.03

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Solution

The fourth proportional to 426,492,021.83, 639,738,032.74 and 349,007,924.03 is: 523,511,886.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,492,021.83 : 639,738,032.74 = 349,007,924.03 : x
  2. Step 2: Convert to fraction form
    426,492,021.83/639,738,032.74 = 349,007,924.03/x
  3. Step 3: Cross multiply
    426,492,021.83x = 639,738,032.74 × 349,007,924.03
  4. Step 4: Simplify right side
    426,492,021.83x = 223,273,642,725,552,320
  5. Step 5: Solve for x
    x = 223,273,642,725,552,320/426,492,021.83
  6. Step 6: Final answer
    x = 523,511,886.04

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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.