Home / 363,643,802.20-545,146,838.70-218,135,256.40

Finding the Fourth Proportional to 363,643,802.20, 545,146,838.70 and 218,135,256.40

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Solution

The fourth proportional to 363,643,802.20, 545,146,838.70 and 218,135,256.40 is: 327,011,610.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,643,802.20 : 545,146,838.70 = 218,135,256.40 : x
  2. Step 2: Convert to fraction form
    363,643,802.20/545,146,838.70 = 218,135,256.40/x
  3. Step 3: Cross multiply
    363,643,802.20x = 545,146,838.70 × 218,135,256.40
  4. Step 4: Simplify right side
    363,643,802.20x = 118,915,745,435,473,952
  5. Step 5: Solve for x
    x = 118,915,745,435,473,952/363,643,802.20
  6. Step 6: Final answer
    x = 327,011,610.58

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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.