Home / 1,428,655,015,850.90-1,970,219,612,571.40-1,042,667,972,031.30

Finding the Fourth Proportional to 1,428,655,015,850.90, 1,970,219,612,571.40 and 1,042,667,972,031.30

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Solution

The fourth proportional to 1,428,655,015,850.90, 1,970,219,612,571.40 and 1,042,667,972,031.30 is: 1,437,915,287,528.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,655,015,850.90 : 1,970,219,612,571.40 = 1,042,667,972,031.30 : x
  2. Step 2: Convert to fraction form
    1,428,655,015,850.90/1,970,219,612,571.40 = 1,042,667,972,031.30/x
  3. Step 3: Cross multiply
    1,428,655,015,850.90x = 1,970,219,612,571.40 × 1,042,667,972,031.30
  4. Step 4: Simplify right side
    1,428,655,015,850.90x = 2,054,284,887,896,115,290,046,464
  5. Step 5: Solve for x
    x = 2,054,284,887,896,115,290,046,464/1,428,655,015,850.90
  6. Step 6: Final answer
    x = 1,437,915,287,528.38

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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.