Home / 280,833,926,546.80-421,250,889,820.20-259,345,003,423.60

Finding the Fourth Proportional to 280,833,926,546.80, 421,250,889,820.20 and 259,345,003,423.60

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Solution

The fourth proportional to 280,833,926,546.80, 421,250,889,820.20 and 259,345,003,423.60 is: 389,017,505,135.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,833,926,546.80 : 421,250,889,820.20 = 259,345,003,423.60 : x
  2. Step 2: Convert to fraction form
    280,833,926,546.80/421,250,889,820.20 = 259,345,003,423.60/x
  3. Step 3: Cross multiply
    280,833,926,546.80x = 421,250,889,820.20 × 259,345,003,423.60
  4. Step 4: Simplify right side
    280,833,926,546.80x = 109,249,313,462,614,314,975,232
  5. Step 5: Solve for x
    x = 109,249,313,462,614,314,975,232/280,833,926,546.80
  6. Step 6: Final answer
    x = 389,017,505,135.40

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1.5x scale

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.