Home / 300,389,261.28-450,773,431.92-127,865,793.12

Finding the Fourth Proportional to 300,389,261.28, 450,773,431.92 and 127,865,793.12

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Solution

The fourth proportional to 300,389,261.28, 450,773,431.92 and 127,865,793.12 is: 191,879,370.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,389,261.28 : 450,773,431.92 = 127,865,793.12 : x
  2. Step 2: Convert to fraction form
    300,389,261.28/450,773,431.92 = 127,865,793.12/x
  3. Step 3: Cross multiply
    300,389,261.28x = 450,773,431.92 × 127,865,793.12
  4. Step 4: Simplify right side
    300,389,261.28x = 57,638,502,389,875,128
  5. Step 5: Solve for x
    x = 57,638,502,389,875,128/300,389,261.28
  6. Step 6: Final answer
    x = 191,879,370.60

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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.