Home / 410,085,055.72-565,915,340.10-221,913,217

Finding the Fourth Proportional to 410,085,055.72, 565,915,340.10 and 221,913,217

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Solution

The fourth proportional to 410,085,055.72, 565,915,340.10 and 221,913,217 is: 306,239,137.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,085,055.72 : 565,915,340.10 = 221,913,217 : x
  2. Step 2: Convert to fraction form
    410,085,055.72/565,915,340.10 = 221,913,217/x
  3. Step 3: Cross multiply
    410,085,055.72x = 565,915,340.10 × 221,913,217
  4. Step 4: Simplify right side
    410,085,055.72x = 125,584,093,671,240,112
  5. Step 5: Solve for x
    x = 125,584,093,671,240,112/410,085,055.72
  6. Step 6: Final answer
    x = 306,239,137.27

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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.