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Finding the Fourth Proportional to 634,044,711.42, 874,988,039.08 and 355,580,254.62

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Solution

The fourth proportional to 634,044,711.42, 874,988,039.08 and 355,580,254.62 is: 490,704,305.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,044,711.42 : 874,988,039.08 = 355,580,254.62 : x
  2. Step 2: Convert to fraction form
    634,044,711.42/874,988,039.08 = 355,580,254.62/x
  3. Step 3: Cross multiply
    634,044,711.42x = 874,988,039.08 × 355,580,254.62
  4. Step 4: Simplify right side
    634,044,711.42x = 311,128,469,725,520,960
  5. Step 5: Solve for x
    x = 311,128,469,725,520,960/634,044,711.42
  6. Step 6: Final answer
    x = 490,704,305.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.