Home / 280,039,783.01-386,444,773-154,589,285.84

Finding the Fourth Proportional to 280,039,783.01, 386,444,773 and 154,589,285.84

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Solution

The fourth proportional to 280,039,783.01, 386,444,773 and 154,589,285.84 is: 213,327,623.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,039,783.01 : 386,444,773 = 154,589,285.84 : x
  2. Step 2: Convert to fraction form
    280,039,783.01/386,444,773 = 154,589,285.84/x
  3. Step 3: Cross multiply
    280,039,783.01x = 386,444,773 × 154,589,285.84
  4. Step 4: Simplify right side
    280,039,783.01x = 59,740,221,474,670,912
  5. Step 5: Solve for x
    x = 59,740,221,474,670,912/280,039,783.01
  6. Step 6: Final answer
    x = 213,327,623.78

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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.