Home / 907,634,956.95-1,252,503,172.97-505,727,939.86

Finding the Fourth Proportional to 907,634,956.95, 1,252,503,172.97 and 505,727,939.86

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Solution

The fourth proportional to 907,634,956.95, 1,252,503,172.97 and 505,727,939.86 is: 697,886,131.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,634,956.95 : 1,252,503,172.97 = 505,727,939.86 : x
  2. Step 2: Convert to fraction form
    907,634,956.95/1,252,503,172.97 = 505,727,939.86/x
  3. Step 3: Cross multiply
    907,634,956.95x = 1,252,503,172.97 × 505,727,939.86
  4. Step 4: Simplify right side
    907,634,956.95x = 633,425,849,334,231,424
  5. Step 5: Solve for x
    x = 633,425,849,334,231,424/907,634,956.95
  6. Step 6: Final answer
    x = 697,886,131.96

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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.