Home / 515,429,766.16-711,293,193.64-283,642,758.16

Finding the Fourth Proportional to 515,429,766.16, 711,293,193.64 and 283,642,758.16

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Solution

The fourth proportional to 515,429,766.16, 711,293,193.64 and 283,642,758.16 is: 391,427,070.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,429,766.16 : 711,293,193.64 = 283,642,758.16 : x
  2. Step 2: Convert to fraction form
    515,429,766.16/711,293,193.64 = 283,642,758.16/x
  3. Step 3: Cross multiply
    515,429,766.16x = 711,293,193.64 × 283,642,758.16
  4. Step 4: Simplify right side
    515,429,766.16x = 201,753,163,304,484,576
  5. Step 5: Solve for x
    x = 201,753,163,304,484,576/515,429,766.16
  6. Step 6: Final answer
    x = 391,427,070.28

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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.