Home / 310,818,168.76-428,917,806.98-171,585,933.88

Finding the Fourth Proportional to 310,818,168.76, 428,917,806.98 and 171,585,933.88

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Solution

The fourth proportional to 310,818,168.76, 428,917,806.98 and 171,585,933.88 is: 236,782,369.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,818,168.76 : 428,917,806.98 = 171,585,933.88 : x
  2. Step 2: Convert to fraction form
    310,818,168.76/428,917,806.98 = 171,585,933.88/x
  3. Step 3: Cross multiply
    310,818,168.76x = 428,917,806.98 × 171,585,933.88
  4. Step 4: Simplify right side
    310,818,168.76x = 73,596,262,468,424,880
  5. Step 5: Solve for x
    x = 73,596,262,468,424,880/310,818,168.76
  6. Step 6: Final answer
    x = 236,782,369.45

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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.