Home / 428,152,364.55-642,228,546.83-299,012,201.55

Finding the Fourth Proportional to 428,152,364.55, 642,228,546.83 and 299,012,201.55

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Solution

The fourth proportional to 428,152,364.55, 642,228,546.83 and 299,012,201.55 is: 448,518,302.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,152,364.55 : 642,228,546.83 = 299,012,201.55 : x
  2. Step 2: Convert to fraction form
    428,152,364.55/642,228,546.83 = 299,012,201.55/x
  3. Step 3: Cross multiply
    428,152,364.55x = 642,228,546.83 × 299,012,201.55
  4. Step 4: Simplify right side
    428,152,364.55x = 192,034,171,684,400,544
  5. Step 5: Solve for x
    x = 192,034,171,684,400,544/428,152,364.55
  6. Step 6: Final answer
    x = 448,518,302.33

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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.