Home / 518,444,145.71-777,667,005.93-211,736,258.58

Finding the Fourth Proportional to 518,444,145.71, 777,667,005.93 and 211,736,258.58

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Solution

The fourth proportional to 518,444,145.71, 777,667,005.93 and 211,736,258.58 is: 317,604,709.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,444,145.71 : 777,667,005.93 = 211,736,258.58 : x
  2. Step 2: Convert to fraction form
    518,444,145.71/777,667,005.93 = 211,736,258.58/x
  3. Step 3: Cross multiply
    518,444,145.71x = 777,667,005.93 × 211,736,258.58
  4. Step 4: Simplify right side
    518,444,145.71x = 164,660,302,260,439,136
  5. Step 5: Solve for x
    x = 164,660,302,260,439,136/518,444,145.71
  6. Step 6: Final answer
    x = 317,604,709.44

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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.