Home / 139,336,647.80-192,289,509.36-76,617,522.81

Finding the Fourth Proportional to 139,336,647.80, 192,289,509.36 and 76,617,522.81

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Solution

The fourth proportional to 139,336,647.80, 192,289,509.36 and 76,617,522.81 is: 105,734,895.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,336,647.80 : 192,289,509.36 = 76,617,522.81 : x
  2. Step 2: Convert to fraction form
    139,336,647.80/192,289,509.36 = 76,617,522.81/x
  3. Step 3: Cross multiply
    139,336,647.80x = 192,289,509.36 × 76,617,522.81
  4. Step 4: Simplify right side
    139,336,647.80x = 14,732,745,869,513,510
  5. Step 5: Solve for x
    x = 14,732,745,869,513,510/139,336,647.80
  6. Step 6: Final answer
    x = 105,734,895.32

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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.