Home / 128,351,153.49-191,447,601.38-116,568,172.77

Finding the Fourth Proportional to 128,351,153.49, 191,447,601.38 and 116,568,172.77

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Solution

The fourth proportional to 128,351,153.49, 191,447,601.38 and 116,568,172.77 is: 173,872,197.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,351,153.49 : 191,447,601.38 = 116,568,172.77 : x
  2. Step 2: Convert to fraction form
    128,351,153.49/191,447,601.38 = 116,568,172.77/x
  3. Step 3: Cross multiply
    128,351,153.49x = 191,447,601.38 × 116,568,172.77
  4. Step 4: Simplify right side
    128,351,153.49x = 22,316,697,074,065,928
  5. Step 5: Solve for x
    x = 22,316,697,074,065,928/128,351,153.49
  6. Step 6: Final answer
    x = 173,872,197.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.