Home / 919,218,036.24-1,268,912,303.84-617,978,056

Finding the Fourth Proportional to 919,218,036.24, 1,268,912,303.84 and 617,978,056

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Solution

The fourth proportional to 919,218,036.24, 1,268,912,303.84 and 617,978,056 is: 853,072,859.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,218,036.24 : 1,268,912,303.84 = 617,978,056 : x
  2. Step 2: Convert to fraction form
    919,218,036.24/1,268,912,303.84 = 617,978,056/x
  3. Step 3: Cross multiply
    919,218,036.24x = 1,268,912,303.84 × 617,978,056
  4. Step 4: Simplify right side
    919,218,036.24x = 784,159,958,761,524,480
  5. Step 5: Solve for x
    x = 784,159,958,761,524,480/919,218,036.24
  6. Step 6: Final answer
    x = 853,072,859.59

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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.