Home / 402,473,430,637.05-555,415,135,816.45-219,569,978,033.11

Finding the Fourth Proportional to 402,473,430,637.05, 555,415,135,816.45 and 219,569,978,033.11

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Solution

The fourth proportional to 402,473,430,637.05, 555,415,135,816.45 and 219,569,978,033.11 is: 303,007,552,517.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,473,430,637.05 : 555,415,135,816.45 = 219,569,978,033.11 : x
  2. Step 2: Convert to fraction form
    402,473,430,637.05/555,415,135,816.45 = 219,569,978,033.11/x
  3. Step 3: Cross multiply
    402,473,430,637.05x = 555,415,135,816.45 × 219,569,978,033.11
  4. Step 4: Simplify right side
    402,473,430,637.05x = 121,952,489,170,474,706,665,472
  5. Step 5: Solve for x
    x = 121,952,489,170,474,706,665,472/402,473,430,637.05
  6. Step 6: Final answer
    x = 303,007,552,517.05

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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.