Home / 386,571,938,970.63-533,485,810,023.55-215,293,842,995.48

Finding the Fourth Proportional to 386,571,938,970.63, 533,485,810,023.55 and 215,293,842,995.48

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Solution

The fourth proportional to 386,571,938,970.63, 533,485,810,023.55 and 215,293,842,995.48 is: 297,114,711,764.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,571,938,970.63 : 533,485,810,023.55 = 215,293,842,995.48 : x
  2. Step 2: Convert to fraction form
    386,571,938,970.63/533,485,810,023.55 = 215,293,842,995.48/x
  3. Step 3: Cross multiply
    386,571,938,970.63x = 533,485,810,023.55 × 215,293,842,995.48
  4. Step 4: Simplify right side
    386,571,938,970.63x = 114,856,210,223,526,649,528,320
  5. Step 5: Solve for x
    x = 114,856,210,223,526,649,528,320/386,571,938,970.63
  6. Step 6: Final answer
    x = 297,114,711,764.56

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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.