Home / 411,903,225,736.56-617,521,417,737-128,776,332,374.64

Finding the Fourth Proportional to 411,903,225,736.56, 617,521,417,737 and 128,776,332,374.64

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Solution

The fourth proportional to 411,903,225,736.56, 617,521,417,737 and 128,776,332,374.64 is: 193,060,258,745.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,903,225,736.56 : 617,521,417,737 = 128,776,332,374.64 : x
  2. Step 2: Convert to fraction form
    411,903,225,736.56/617,521,417,737 = 128,776,332,374.64/x
  3. Step 3: Cross multiply
    411,903,225,736.56x = 617,521,417,737 × 128,776,332,374.64
  4. Step 4: Simplify right side
    411,903,225,736.56x = 79,522,143,338,958,816,280,576
  5. Step 5: Solve for x
    x = 79,522,143,338,958,816,280,576/411,903,225,736.56
  6. Step 6: Final answer
    x = 193,060,258,745.87

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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.