Home / 465,471,881.28-642,321,597.12-256,616,608.32

Finding the Fourth Proportional to 465,471,881.28, 642,321,597.12 and 256,616,608.32

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Solution

The fourth proportional to 465,471,881.28, 642,321,597.12 and 256,616,608.32 is: 354,114,601.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,471,881.28 : 642,321,597.12 = 256,616,608.32 : x
  2. Step 2: Convert to fraction form
    465,471,881.28/642,321,597.12 = 256,616,608.32/x
  3. Step 3: Cross multiply
    465,471,881.28x = 642,321,597.12 × 256,616,608.32
  4. Step 4: Simplify right side
    465,471,881.28x = 164,830,389,703,619,872
  5. Step 5: Solve for x
    x = 164,830,389,703,619,872/465,471,881.28
  6. Step 6: Final answer
    x = 354,114,601.40

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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.