Home / 783,504,494.30-1,176,161,867.85-420,707,438.30

Finding the Fourth Proportional to 783,504,494.30, 1,176,161,867.85 and 420,707,438.30

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Solution

The fourth proportional to 783,504,494.30, 1,176,161,867.85 and 420,707,438.30 is: 631,547,170.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,504,494.30 : 1,176,161,867.85 = 420,707,438.30 : x
  2. Step 2: Convert to fraction form
    783,504,494.30/1,176,161,867.85 = 420,707,438.30/x
  3. Step 3: Cross multiply
    783,504,494.30x = 1,176,161,867.85 × 420,707,438.30
  4. Step 4: Simplify right side
    783,504,494.30x = 494,820,046,449,316,608
  5. Step 5: Solve for x
    x = 494,820,046,449,316,608/783,504,494.30
  6. Step 6: Final answer
    x = 631,547,170.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.