Home / 399,851,713.62-551,791,285.26-223,639,288.38

Finding the Fourth Proportional to 399,851,713.62, 551,791,285.26 and 223,639,288.38

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Solution

The fourth proportional to 399,851,713.62, 551,791,285.26 and 223,639,288.38 is: 308,619,936.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,851,713.62 : 551,791,285.26 = 223,639,288.38 : x
  2. Step 2: Convert to fraction form
    399,851,713.62/551,791,285.26 = 223,639,288.38/x
  3. Step 3: Cross multiply
    399,851,713.62x = 551,791,285.26 × 223,639,288.38
  4. Step 4: Simplify right side
    399,851,713.62x = 123,402,210,369,831,984
  5. Step 5: Solve for x
    x = 123,402,210,369,831,984/399,851,713.62
  6. Step 6: Final answer
    x = 308,619,936.26

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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.