Home / 220,891,289.73-304,830,900.55-121,769,859.57

Finding the Fourth Proportional to 220,891,289.73, 304,830,900.55 and 121,769,859.57

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Solution

The fourth proportional to 220,891,289.73, 304,830,900.55 and 121,769,859.57 is: 168,042,913.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,891,289.73 : 304,830,900.55 = 121,769,859.57 : x
  2. Step 2: Convert to fraction form
    220,891,289.73/304,830,900.55 = 121,769,859.57/x
  3. Step 3: Cross multiply
    220,891,289.73x = 304,830,900.55 × 121,769,859.57
  4. Step 4: Simplify right side
    220,891,289.73x = 37,119,215,952,570,136
  5. Step 5: Solve for x
    x = 37,119,215,952,570,136/220,891,289.73
  6. Step 6: Final answer
    x = 168,042,913.77

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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.