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Finding the Fourth Proportional to 515,429,760, 711,293,185.44 and 283,642,752

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Solution

The fourth proportional to 515,429,760, 711,293,185.44 and 283,642,752 is: 391,427,061.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,429,760 : 711,293,185.44 = 283,642,752 : x
  2. Step 2: Convert to fraction form
    515,429,760/711,293,185.44 = 283,642,752/x
  3. Step 3: Cross multiply
    515,429,760x = 711,293,185.44 × 283,642,752
  4. Step 4: Simplify right side
    515,429,760x = 201,753,156,597,047,936
  5. Step 5: Solve for x
    x = 201,753,156,597,047,936/515,429,760
  6. Step 6: Final answer
    x = 391,427,061.95

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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.