Home / 220,642,245.87-304,500,127.55-121,522,973.55

Finding the Fourth Proportional to 220,642,245.87, 304,500,127.55 and 121,522,973.55

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Solution

The fourth proportional to 220,642,245.87, 304,500,127.55 and 121,522,973.55 is: 167,709,319.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,642,245.87 : 304,500,127.55 = 121,522,973.55 : x
  2. Step 2: Convert to fraction form
    220,642,245.87/304,500,127.55 = 121,522,973.55/x
  3. Step 3: Cross multiply
    220,642,245.87x = 304,500,127.55 × 121,522,973.55
  4. Step 4: Simplify right side
    220,642,245.87x = 37,003,760,945,163,744
  5. Step 5: Solve for x
    x = 37,003,760,945,163,744/220,642,245.87
  6. Step 6: Final answer
    x = 167,709,319.67

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1.5x scale

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.