Home / 912,398,530.80-1,365,910,410.60-859,248,015.60

Finding the Fourth Proportional to 912,398,530.80, 1,365,910,410.60 and 859,248,015.60

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Solution

The fourth proportional to 912,398,530.80, 1,365,910,410.60 and 859,248,015.60 is: 1,286,341,187.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,398,530.80 : 1,365,910,410.60 = 859,248,015.60 : x
  2. Step 2: Convert to fraction form
    912,398,530.80/1,365,910,410.60 = 859,248,015.60/x
  3. Step 3: Cross multiply
    912,398,530.80x = 1,365,910,410.60 × 859,248,015.60
  4. Step 4: Simplify right side
    912,398,530.80x = 1,173,655,809,795,431,168
  5. Step 5: Solve for x
    x = 1,173,655,809,795,431,168/912,398,530.80
  6. Step 6: Final answer
    x = 1,286,341,187.73

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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.