Home / 385,372,700.06-531,723,173.63-218,108,957.58

Finding the Fourth Proportional to 385,372,700.06, 531,723,173.63 and 218,108,957.58

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Solution

The fourth proportional to 385,372,700.06, 531,723,173.63 and 218,108,957.58 is: 300,938,772.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,372,700.06 : 531,723,173.63 = 218,108,957.58 : x
  2. Step 2: Convert to fraction form
    385,372,700.06/531,723,173.63 = 218,108,957.58/x
  3. Step 3: Cross multiply
    385,372,700.06x = 531,723,173.63 × 218,108,957.58
  4. Step 4: Simplify right side
    385,372,700.06x = 115,973,587,120,478,112
  5. Step 5: Solve for x
    x = 115,973,587,120,478,112/385,372,700.06
  6. Step 6: Final answer
    x = 300,938,772.01

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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.