Home / 86,998,786.43-130,470,268.08-28,693,356.40

Finding the Fourth Proportional to 86,998,786.43, 130,470,268.08 and 28,693,356.40

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Solution

The fourth proportional to 86,998,786.43, 130,470,268.08 and 28,693,356.40 is: 43,030,829.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,998,786.43 : 130,470,268.08 = 28,693,356.40 : x
  2. Step 2: Convert to fraction form
    86,998,786.43/130,470,268.08 = 28,693,356.40/x
  3. Step 3: Cross multiply
    86,998,786.43x = 130,470,268.08 × 28,693,356.40
  4. Step 4: Simplify right side
    86,998,786.43x = 3,743,629,901,893,671.50
  5. Step 5: Solve for x
    x = 3,743,629,901,893,671.50/86,998,786.43
  6. Step 6: Final answer
    x = 43,030,829.00

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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.