Home / 354,109,741.20-531,164,611.80-256,608,032.40

Finding the Fourth Proportional to 354,109,741.20, 531,164,611.80 and 256,608,032.40

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Solution

The fourth proportional to 354,109,741.20, 531,164,611.80 and 256,608,032.40 is: 384,912,048.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,109,741.20 : 531,164,611.80 = 256,608,032.40 : x
  2. Step 2: Convert to fraction form
    354,109,741.20/531,164,611.80 = 256,608,032.40/x
  3. Step 3: Cross multiply
    354,109,741.20x = 531,164,611.80 × 256,608,032.40
  4. Step 4: Simplify right side
    354,109,741.20x = 136,301,105,914,507,824
  5. Step 5: Solve for x
    x = 136,301,105,914,507,824/354,109,741.20
  6. Step 6: Final answer
    x = 384,912,048.60

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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.