Home / 129,378,583.67-193,954,501.42-48,656,238.71

Finding the Fourth Proportional to 129,378,583.67, 193,954,501.42 and 48,656,238.71

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Solution

The fourth proportional to 129,378,583.67, 193,954,501.42 and 48,656,238.71 is: 72,941,720.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,378,583.67 : 193,954,501.42 = 48,656,238.71 : x
  2. Step 2: Convert to fraction form
    129,378,583.67/193,954,501.42 = 48,656,238.71/x
  3. Step 3: Cross multiply
    129,378,583.67x = 193,954,501.42 × 48,656,238.71
  4. Step 4: Simplify right side
    129,378,583.67x = 9,437,096,518,879,140
  5. Step 5: Solve for x
    x = 9,437,096,518,879,140/129,378,583.67
  6. Step 6: Final answer
    x = 72,941,720.74

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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.