Home / 422,923,981.86-634,515,871.41-201,877,388.10

Finding the Fourth Proportional to 422,923,981.86, 634,515,871.41 and 201,877,388.10

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Solution

The fourth proportional to 422,923,981.86, 634,515,871.41 and 201,877,388.10 is: 302,878,087.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,923,981.86 : 634,515,871.41 = 201,877,388.10 : x
  2. Step 2: Convert to fraction form
    422,923,981.86/634,515,871.41 = 201,877,388.10/x
  3. Step 3: Cross multiply
    422,923,981.86x = 634,515,871.41 × 201,877,388.10
  4. Step 4: Simplify right side
    422,923,981.86x = 128,094,406,828,246,256
  5. Step 5: Solve for x
    x = 128,094,406,828,246,256/422,923,981.86
  6. Step 6: Final answer
    x = 302,878,087.61

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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.