Home / 35,666,849.90-49,220,260.06-21,728,200.78

Finding the Fourth Proportional to 35,666,849.90, 49,220,260.06 and 21,728,200.78

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Solution

The fourth proportional to 35,666,849.90, 49,220,260.06 and 21,728,200.78 is: 29,984,921.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,666,849.90 : 49,220,260.06 = 21,728,200.78 : x
  2. Step 2: Convert to fraction form
    35,666,849.90/49,220,260.06 = 21,728,200.78/x
  3. Step 3: Cross multiply
    35,666,849.90x = 49,220,260.06 × 21,728,200.78
  4. Step 4: Simplify right side
    35,666,849.90x = 1,069,467,693,152,775.25
  5. Step 5: Solve for x
    x = 1,069,467,693,152,775.25/35,666,849.90
  6. Step 6: Final answer
    x = 29,984,921.47

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1.5x scale

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.