Home / 67,379,622.40-100,920,134.40-55,435,686.40

Finding the Fourth Proportional to 67,379,622.40, 100,920,134.40 and 55,435,686.40

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Solution

The fourth proportional to 67,379,622.40, 100,920,134.40 and 55,435,686.40 is: 83,030,695.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,379,622.40 : 100,920,134.40 = 55,435,686.40 : x
  2. Step 2: Convert to fraction form
    67,379,622.40/100,920,134.40 = 55,435,686.40/x
  3. Step 3: Cross multiply
    67,379,622.40x = 100,920,134.40 × 55,435,686.40
  4. Step 4: Simplify right side
    67,379,622.40x = 5,594,576,922,044,252
  5. Step 5: Solve for x
    x = 5,594,576,922,044,252/67,379,622.40
  6. Step 6: Final answer
    x = 83,030,695.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.