Home / 774,173,080.80-1,161,259,621.20-289,435,903.20

Finding the Fourth Proportional to 774,173,080.80, 1,161,259,621.20 and 289,435,903.20

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Solution

The fourth proportional to 774,173,080.80, 1,161,259,621.20 and 289,435,903.20 is: 434,153,854.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,173,080.80 : 1,161,259,621.20 = 289,435,903.20 : x
  2. Step 2: Convert to fraction form
    774,173,080.80/1,161,259,621.20 = 289,435,903.20/x
  3. Step 3: Cross multiply
    774,173,080.80x = 1,161,259,621.20 × 289,435,903.20
  4. Step 4: Simplify right side
    774,173,080.80x = 336,110,227,311,711,872
  5. Step 5: Solve for x
    x = 336,110,227,311,711,872/774,173,080.80
  6. Step 6: Final answer
    x = 434,153,854.80

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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.