Home / 98,145,078.78-135,421,554.87-58,972,562.67

Finding the Fourth Proportional to 98,145,078.78, 135,421,554.87 and 58,972,562.67

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Solution

The fourth proportional to 98,145,078.78, 135,421,554.87 and 58,972,562.67 is: 81,370,927.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,145,078.78 : 135,421,554.87 = 58,972,562.67 : x
  2. Step 2: Convert to fraction form
    98,145,078.78/135,421,554.87 = 58,972,562.67/x
  3. Step 3: Cross multiply
    98,145,078.78x = 135,421,554.87 × 58,972,562.67
  4. Step 4: Simplify right side
    98,145,078.78x = 7,986,156,131,439,919
  5. Step 5: Solve for x
    x = 7,986,156,131,439,919/98,145,078.78
  6. Step 6: Final answer
    x = 81,370,927.92

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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.