Home / 907,634,956.45-1,252,503,172.28-505,727,939.36

Finding the Fourth Proportional to 907,634,956.45, 1,252,503,172.28 and 505,727,939.36

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Solution

The fourth proportional to 907,634,956.45, 1,252,503,172.28 and 505,727,939.36 is: 697,886,131.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,634,956.45 : 1,252,503,172.28 = 505,727,939.36 : x
  2. Step 2: Convert to fraction form
    907,634,956.45/1,252,503,172.28 = 505,727,939.36/x
  3. Step 3: Cross multiply
    907,634,956.45x = 1,252,503,172.28 × 505,727,939.36
  4. Step 4: Simplify right side
    907,634,956.45x = 633,425,848,359,027,456
  5. Step 5: Solve for x
    x = 633,425,848,359,027,456/907,634,956.45
  6. Step 6: Final answer
    x = 697,886,131.27

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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.