Home / 878,893,282.56-1,212,848,758.08-482,415,726.72

Finding the Fourth Proportional to 878,893,282.56, 1,212,848,758.08 and 482,415,726.72

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Solution

The fourth proportional to 878,893,282.56, 1,212,848,758.08 and 482,415,726.72 is: 665,720,544.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,893,282.56 : 1,212,848,758.08 = 482,415,726.72 : x
  2. Step 2: Convert to fraction form
    878,893,282.56/1,212,848,758.08 = 482,415,726.72/x
  3. Step 3: Cross multiply
    878,893,282.56x = 1,212,848,758.08 × 482,415,726.72
  4. Step 4: Simplify right side
    878,893,282.56x = 585,097,315,030,612,608
  5. Step 5: Solve for x
    x = 585,097,315,030,612,608/878,893,282.56
  6. Step 6: Final answer
    x = 665,720,544.96

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1.5x scale

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.