Home / 105,145,028.61-145,099,780.51-58,100,791.68

Finding the Fourth Proportional to 105,145,028.61, 145,099,780.51 and 58,100,791.68

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Solution

The fourth proportional to 105,145,028.61, 145,099,780.51 and 58,100,791.68 is: 80,178,894.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,145,028.61 : 145,099,780.51 = 58,100,791.68 : x
  2. Step 2: Convert to fraction form
    105,145,028.61/145,099,780.51 = 58,100,791.68/x
  3. Step 3: Cross multiply
    105,145,028.61x = 145,099,780.51 × 58,100,791.68
  4. Step 4: Simplify right side
    105,145,028.61x = 8,430,412,120,225,234
  5. Step 5: Solve for x
    x = 8,430,412,120,225,234/105,145,028.61
  6. Step 6: Final answer
    x = 80,178,894.16

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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.