Home / 120,290,055.39-180,510,985.94-51,202,748.62

Finding the Fourth Proportional to 120,290,055.39, 180,510,985.94 and 51,202,748.62

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Solution

The fourth proportional to 120,290,055.39, 180,510,985.94 and 51,202,748.62 is: 76,836,431.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,290,055.39 : 180,510,985.94 = 51,202,748.62 : x
  2. Step 2: Convert to fraction form
    120,290,055.39/180,510,985.94 = 51,202,748.62/x
  3. Step 3: Cross multiply
    120,290,055.39x = 180,510,985.94 × 51,202,748.62
  4. Step 4: Simplify right side
    120,290,055.39x = 9,242,658,635,075,606
  5. Step 5: Solve for x
    x = 9,242,658,635,075,606/120,290,055.39
  6. Step 6: Final answer
    x = 76,836,431.79

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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.