Home / 428,864,254.88-643,568,468.81-183,222,740.39

Finding the Fourth Proportional to 428,864,254.88, 643,568,468.81 and 183,222,740.39

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Solution

The fourth proportional to 428,864,254.88, 643,568,468.81 and 183,222,740.39 is: 274,950,353.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,864,254.88 : 643,568,468.81 = 183,222,740.39 : x
  2. Step 2: Convert to fraction form
    428,864,254.88/643,568,468.81 = 183,222,740.39/x
  3. Step 3: Cross multiply
    428,864,254.88x = 643,568,468.81 × 183,222,740.39
  4. Step 4: Simplify right side
    428,864,254.88x = 117,916,378,479,830,464
  5. Step 5: Solve for x
    x = 117,916,378,479,830,464/428,864,254.88
  6. Step 6: Final answer
    x = 274,950,353.50

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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.