Home / 310,307,278.80-428,227,017.32-171,083,033.76

Finding the Fourth Proportional to 310,307,278.80, 428,227,017.32 and 171,083,033.76

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Solution

The fourth proportional to 310,307,278.80, 428,227,017.32 and 171,083,033.76 is: 236,096,225.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,307,278.80 : 428,227,017.32 = 171,083,033.76 : x
  2. Step 2: Convert to fraction form
    310,307,278.80/428,227,017.32 = 171,083,033.76/x
  3. Step 3: Cross multiply
    310,307,278.80x = 428,227,017.32 × 171,083,033.76
  4. Step 4: Simplify right side
    310,307,278.80x = 73,262,377,261,101,664
  5. Step 5: Solve for x
    x = 73,262,377,261,101,664/310,307,278.80
  6. Step 6: Final answer
    x = 236,096,225.47

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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.