Home / 386,571,938,957.04-533,485,810,004.72-215,293,842,981.88

Finding the Fourth Proportional to 386,571,938,957.04, 533,485,810,004.72 and 215,293,842,981.88

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Solution

The fourth proportional to 386,571,938,957.04, 533,485,810,004.72 and 215,293,842,981.88 is: 297,114,711,745.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,571,938,957.04 : 533,485,810,004.72 = 215,293,842,981.88 : x
  2. Step 2: Convert to fraction form
    386,571,938,957.04/533,485,810,004.72 = 215,293,842,981.88/x
  3. Step 3: Cross multiply
    386,571,938,957.04x = 533,485,810,004.72 × 215,293,842,981.88
  4. Step 4: Simplify right side
    386,571,938,957.04x = 114,856,210,212,217,245,663,232
  5. Step 5: Solve for x
    x = 114,856,210,212,217,245,663,232/386,571,938,957.04
  6. Step 6: Final answer
    x = 297,114,711,745.75

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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.