Home / 753,806,808.80-1,040,247,138.48-423,783,415.52

Finding the Fourth Proportional to 753,806,808.80, 1,040,247,138.48 and 423,783,415.52

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Solution

The fourth proportional to 753,806,808.80, 1,040,247,138.48 and 423,783,415.52 is: 584,817,595.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,806,808.80 : 1,040,247,138.48 = 423,783,415.52 : x
  2. Step 2: Convert to fraction form
    753,806,808.80/1,040,247,138.48 = 423,783,415.52/x
  3. Step 3: Cross multiply
    753,806,808.80x = 1,040,247,138.48 × 423,783,415.52
  4. Step 4: Simplify right side
    753,806,808.80x = 440,839,485,329,960,832
  5. Step 5: Solve for x
    x = 440,839,485,329,960,832/753,806,808.80
  6. Step 6: Final answer
    x = 584,817,595.42

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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.