Home / 89,072,900.40-122,923,628.40-84,991,433.52

Finding the Fourth Proportional to 89,072,900.40, 122,923,628.40 and 84,991,433.52

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Solution

The fourth proportional to 89,072,900.40, 122,923,628.40 and 84,991,433.52 is: 117,291,065.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,072,900.40 : 122,923,628.40 = 84,991,433.52 : x
  2. Step 2: Convert to fraction form
    89,072,900.40/122,923,628.40 = 84,991,433.52/x
  3. Step 3: Cross multiply
    89,072,900.40x = 122,923,628.40 × 84,991,433.52
  4. Step 4: Simplify right side
    89,072,900.40x = 10,447,455,391,195,784
  5. Step 5: Solve for x
    x = 10,447,455,391,195,784/89,072,900.40
  6. Step 6: Final answer
    x = 117,291,065.46

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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.