Home / 393,403,409.75-590,097,012.69-131,107,005.44

Finding the Fourth Proportional to 393,403,409.75, 590,097,012.69 and 131,107,005.44

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Solution

The fourth proportional to 393,403,409.75, 590,097,012.69 and 131,107,005.44 is: 196,657,808.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,403,409.75 : 590,097,012.69 = 131,107,005.44 : x
  2. Step 2: Convert to fraction form
    393,403,409.75/590,097,012.69 = 131,107,005.44/x
  3. Step 3: Cross multiply
    393,403,409.75x = 590,097,012.69 × 131,107,005.44
  4. Step 4: Simplify right side
    393,403,409.75x = 77,365,852,252,875,584
  5. Step 5: Solve for x
    x = 77,365,852,252,875,584/393,403,409.75
  6. Step 6: Final answer
    x = 196,657,808.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.