Home / 77,048,981.07-106,324,772.36-42,240,907.77

Finding the Fourth Proportional to 77,048,981.07, 106,324,772.36 and 42,240,907.77

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Solution

The fourth proportional to 77,048,981.07, 106,324,772.36 and 42,240,907.77 is: 58,290,905.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,048,981.07 : 106,324,772.36 = 42,240,907.77 : x
  2. Step 2: Convert to fraction form
    77,048,981.07/106,324,772.36 = 42,240,907.77/x
  3. Step 3: Cross multiply
    77,048,981.07x = 106,324,772.36 × 42,240,907.77
  4. Step 4: Simplify right side
    77,048,981.07x = 4,491,254,902,713,801
  5. Step 5: Solve for x
    x = 4,491,254,902,713,801/77,048,981.07
  6. Step 6: Final answer
    x = 58,290,905.87

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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.