Home / 1,383,191,636.40-1,908,798,751.62-748,112,837.40

Finding the Fourth Proportional to 1,383,191,636.40, 1,908,798,751.62 and 748,112,837.40

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Solution

The fourth proportional to 1,383,191,636.40, 1,908,798,751.62 and 748,112,837.40 is: 1,032,392,629.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,191,636.40 : 1,908,798,751.62 = 748,112,837.40 : x
  2. Step 2: Convert to fraction form
    1,383,191,636.40/1,908,798,751.62 = 748,112,837.40/x
  3. Step 3: Cross multiply
    1,383,191,636.40x = 1,908,798,751.62 × 748,112,837.40
  4. Step 4: Simplify right side
    1,383,191,636.40x = 1,427,996,850,100,015,872
  5. Step 5: Solve for x
    x = 1,427,996,850,100,015,872/1,383,191,636.40
  6. Step 6: Final answer
    x = 1,032,392,629.13

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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.