Home / 515,861,658.84-711,882,043.70-292,841,393.43

Finding the Fourth Proportional to 515,861,658.84, 711,882,043.70 and 292,841,393.43

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Solution

The fourth proportional to 515,861,658.84, 711,882,043.70 and 292,841,393.43 is: 404,117,123.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,861,658.84 : 711,882,043.70 = 292,841,393.43 : x
  2. Step 2: Convert to fraction form
    515,861,658.84/711,882,043.70 = 292,841,393.43/x
  3. Step 3: Cross multiply
    515,861,658.84x = 711,882,043.70 × 292,841,393.43
  4. Step 4: Simplify right side
    515,861,658.84x = 208,468,529,633,439,968
  5. Step 5: Solve for x
    x = 208,468,529,633,439,968/515,861,658.84
  6. Step 6: Final answer
    x = 404,117,123.38

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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.