Home / 203,918,544.40-305,835,307.80-74,587,075.60

Finding the Fourth Proportional to 203,918,544.40, 305,835,307.80 and 74,587,075.60

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Solution

The fourth proportional to 203,918,544.40, 305,835,307.80 and 74,587,075.60 is: 111,865,065.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,918,544.40 : 305,835,307.80 = 74,587,075.60 : x
  2. Step 2: Convert to fraction form
    203,918,544.40/305,835,307.80 = 74,587,075.60/x
  3. Step 3: Cross multiply
    203,918,544.40x = 305,835,307.80 × 74,587,075.60
  4. Step 4: Simplify right side
    203,918,544.40x = 22,811,361,224,027,868
  5. Step 5: Solve for x
    x = 22,811,361,224,027,868/203,918,544.40
  6. Step 6: Final answer
    x = 111,865,065.00

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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.