Home / 220,147,739.35-303,804,075.80-121,030,173.12

Finding the Fourth Proportional to 220,147,739.35, 303,804,075.80 and 121,030,173.12

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Solution

The fourth proportional to 220,147,739.35, 303,804,075.80 and 121,030,173.12 is: 167,021,746.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,147,739.35 : 303,804,075.80 = 121,030,173.12 : x
  2. Step 2: Convert to fraction form
    220,147,739.35/303,804,075.80 = 121,030,173.12/x
  3. Step 3: Cross multiply
    220,147,739.35x = 303,804,075.80 × 121,030,173.12
  4. Step 4: Simplify right side
    220,147,739.35x = 36,769,459,888,635,608
  5. Step 5: Solve for x
    x = 36,769,459,888,635,608/220,147,739.35
  6. Step 6: Final answer
    x = 167,021,746.38

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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.