Home / 370,657,921.80-511,569,331.38-205,698,479.88

Finding the Fourth Proportional to 370,657,921.80, 511,569,331.38 and 205,698,479.88

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Solution

The fourth proportional to 370,657,921.80, 511,569,331.38 and 205,698,479.88 is: 283,897,976.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,657,921.80 : 511,569,331.38 = 205,698,479.88 : x
  2. Step 2: Convert to fraction form
    370,657,921.80/511,569,331.38 = 205,698,479.88/x
  3. Step 3: Cross multiply
    370,657,921.80x = 511,569,331.38 × 205,698,479.88
  4. Step 4: Simplify right side
    370,657,921.80x = 105,229,033,818,093,984
  5. Step 5: Solve for x
    x = 105,229,033,818,093,984/370,657,921.80
  6. Step 6: Final answer
    x = 283,897,976.08

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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.