Home / 426,492,024.51-639,738,036.78-349,007,926.71

Finding the Fourth Proportional to 426,492,024.51, 639,738,036.78 and 349,007,926.71

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Solution

The fourth proportional to 426,492,024.51, 639,738,036.78 and 349,007,926.71 is: 523,511,890.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,492,024.51 : 639,738,036.78 = 349,007,926.71 : x
  2. Step 2: Convert to fraction form
    426,492,024.51/639,738,036.78 = 349,007,926.71/x
  3. Step 3: Cross multiply
    426,492,024.51x = 639,738,036.78 × 349,007,926.71
  4. Step 4: Simplify right side
    426,492,024.51x = 223,273,645,854,113,504
  5. Step 5: Solve for x
    x = 223,273,645,854,113,504/426,492,024.51
  6. Step 6: Final answer
    x = 523,511,890.08

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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.