Home / 646,868,512.80-970,428,740.40-186,821,690.40

Finding the Fourth Proportional to 646,868,512.80, 970,428,740.40 and 186,821,690.40

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Solution

The fourth proportional to 646,868,512.80, 970,428,740.40 and 186,821,690.40 is: 280,268,917.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,868,512.80 : 970,428,740.40 = 186,821,690.40 : x
  2. Step 2: Convert to fraction form
    646,868,512.80/970,428,740.40 = 186,821,690.40/x
  3. Step 3: Cross multiply
    646,868,512.80x = 970,428,740.40 × 186,821,690.40
  4. Step 4: Simplify right side
    646,868,512.80x = 181,297,137,694,270,784
  5. Step 5: Solve for x
    x = 181,297,137,694,270,784/646,868,512.80
  6. Step 6: Final answer
    x = 280,268,917.26

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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.