Home / 412,988,015.20-619,482,022.80-182,712,661.60

Finding the Fourth Proportional to 412,988,015.20, 619,482,022.80 and 182,712,661.60

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Solution

The fourth proportional to 412,988,015.20, 619,482,022.80 and 182,712,661.60 is: 274,068,992.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,988,015.20 : 619,482,022.80 = 182,712,661.60 : x
  2. Step 2: Convert to fraction form
    412,988,015.20/619,482,022.80 = 182,712,661.60/x
  3. Step 3: Cross multiply
    412,988,015.20x = 619,482,022.80 × 182,712,661.60
  4. Step 4: Simplify right side
    412,988,015.20x = 113,187,209,199,139,872
  5. Step 5: Solve for x
    x = 113,187,209,199,139,872/412,988,015.20
  6. Step 6: Final answer
    x = 274,068,992.40

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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.