Home / 220,889,941.03-304,829,042.52-121,768,512.69

Finding the Fourth Proportional to 220,889,941.03, 304,829,042.52 and 121,768,512.69

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Solution

The fourth proportional to 220,889,941.03, 304,829,042.52 and 121,768,512.69 is: 168,041,056.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,889,941.03 : 304,829,042.52 = 121,768,512.69 : x
  2. Step 2: Convert to fraction form
    220,889,941.03/304,829,042.52 = 121,768,512.69/x
  3. Step 3: Cross multiply
    220,889,941.03x = 304,829,042.52 × 121,768,512.69
  4. Step 4: Simplify right side
    220,889,941.03x = 37,118,579,132,377,168
  5. Step 5: Solve for x
    x = 37,118,579,132,377,168/220,889,941.03
  6. Step 6: Final answer
    x = 168,041,056.82

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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.