Home / 515,877,028,741.80-711,912,449,963.93-284,385,462,486.46

Finding the Fourth Proportional to 515,877,028,741.80, 711,912,449,963.93 and 284,385,462,486.46

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Solution

The fourth proportional to 515,877,028,741.80, 711,912,449,963.93 and 284,385,462,486.46 is: 392,453,123,618.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,877,028,741.80 : 711,912,449,963.93 = 284,385,462,486.46 : x
  2. Step 2: Convert to fraction form
    515,877,028,741.80/711,912,449,963.93 = 284,385,462,486.46/x
  3. Step 3: Cross multiply
    515,877,028,741.80x = 711,912,449,963.93 × 284,385,462,486.46
  4. Step 4: Simplify right side
    515,877,028,741.80x = 202,457,551,332,861,089,415,168
  5. Step 5: Solve for x
    x = 202,457,551,332,861,089,415,168/515,877,028,741.80
  6. Step 6: Final answer
    x = 392,453,123,618.72

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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.