Home / 808,999,616.40-1,211,446,560.60-445,082,816.40

Finding the Fourth Proportional to 808,999,616.40, 1,211,446,560.60 and 445,082,816.40

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Solution

The fourth proportional to 808,999,616.40, 1,211,446,560.60 and 445,082,816.40 is: 666,494,811.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,999,616.40 : 1,211,446,560.60 = 445,082,816.40 : x
  2. Step 2: Convert to fraction form
    808,999,616.40/1,211,446,560.60 = 445,082,816.40/x
  3. Step 3: Cross multiply
    808,999,616.40x = 1,211,446,560.60 × 445,082,816.40
  4. Step 4: Simplify right side
    808,999,616.40x = 539,194,047,109,941,184
  5. Step 5: Solve for x
    x = 539,194,047,109,941,184/808,999,616.40
  6. Step 6: Final answer
    x = 666,494,811.84

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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.