Home / 1,990,719,081.60-2,980,853,150.40-1,405,292,035.20

Finding the Fourth Proportional to 1,990,719,081.60, 2,980,853,150.40 and 1,405,292,035.20

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Solution

The fourth proportional to 1,990,719,081.60, 2,980,853,150.40 and 1,405,292,035.20 is: 2,104,249,278.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990,719,081.60 : 2,980,853,150.40 = 1,405,292,035.20 : x
  2. Step 2: Convert to fraction form
    1,990,719,081.60/2,980,853,150.40 = 1,405,292,035.20/x
  3. Step 3: Cross multiply
    1,990,719,081.60x = 2,980,853,150.40 × 1,405,292,035.20
  4. Step 4: Simplify right side
    1,990,719,081.60x = 4,188,969,190,357,947,904
  5. Step 5: Solve for x
    x = 4,188,969,190,357,947,904/1,990,719,081.60
  6. Step 6: Final answer
    x = 2,104,249,278.10

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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.