Home / 90,631,667.84-124,972,729.31-61,211,923.77

Finding the Fourth Proportional to 90,631,667.84, 124,972,729.31 and 61,211,923.77

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Solution

The fourth proportional to 90,631,667.84, 124,972,729.31 and 61,211,923.77 is: 84,405,609.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,631,667.84 : 124,972,729.31 = 61,211,923.77 : x
  2. Step 2: Convert to fraction form
    90,631,667.84/124,972,729.31 = 61,211,923.77/x
  3. Step 3: Cross multiply
    90,631,667.84x = 124,972,729.31 × 61,211,923.77
  4. Step 4: Simplify right side
    90,631,667.84x = 7,649,821,180,208,265
  5. Step 5: Solve for x
    x = 7,649,821,180,208,265/90,631,667.84
  6. Step 6: Final answer
    x = 84,405,609.68

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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.