Home / 320,828,391.07-480,413,777.63-221,424,761.82

Finding the Fourth Proportional to 320,828,391.07, 480,413,777.63 and 221,424,761.82

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Solution

The fourth proportional to 320,828,391.07, 480,413,777.63 and 221,424,761.82 is: 331,565,127.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,828,391.07 : 480,413,777.63 = 221,424,761.82 : x
  2. Step 2: Convert to fraction form
    320,828,391.07/480,413,777.63 = 221,424,761.82/x
  3. Step 3: Cross multiply
    320,828,391.07x = 480,413,777.63 × 221,424,761.82
  4. Step 4: Simplify right side
    320,828,391.07x = 106,375,506,286,863,104
  5. Step 5: Solve for x
    x = 106,375,506,286,863,104/320,828,391.07
  6. Step 6: Final answer
    x = 331,565,127.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.