Home / 378,888,045.18-522,865,497.78-205,047,789.18

Finding the Fourth Proportional to 378,888,045.18, 522,865,497.78 and 205,047,789.18

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Solution

The fourth proportional to 378,888,045.18, 522,865,497.78 and 205,047,789.18 is: 282,965,946.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,888,045.18 : 522,865,497.78 = 205,047,789.18 : x
  2. Step 2: Convert to fraction form
    378,888,045.18/522,865,497.78 = 205,047,789.18/x
  3. Step 3: Cross multiply
    378,888,045.18x = 522,865,497.78 × 205,047,789.18
  4. Step 4: Simplify right side
    378,888,045.18x = 107,212,414,358,289,200
  5. Step 5: Solve for x
    x = 107,212,414,358,289,200/378,888,045.18
  6. Step 6: Final answer
    x = 282,965,946.60

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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.