Home / 912,070,419.22-1,258,623,458.58-494,373,736.45

Finding the Fourth Proportional to 912,070,419.22, 1,258,623,458.58 and 494,373,736.45

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Solution

The fourth proportional to 912,070,419.22, 1,258,623,458.58 and 494,373,736.45 is: 682,217,478.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,070,419.22 : 1,258,623,458.58 = 494,373,736.45 : x
  2. Step 2: Convert to fraction form
    912,070,419.22/1,258,623,458.58 = 494,373,736.45/x
  3. Step 3: Cross multiply
    912,070,419.22x = 1,258,623,458.58 × 494,373,736.45
  4. Step 4: Simplify right side
    912,070,419.22x = 622,230,382,001,816,320
  5. Step 5: Solve for x
    x = 622,230,382,001,816,320/912,070,419.22
  6. Step 6: Final answer
    x = 682,217,478.92

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1.5x scale

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.