Home / 1,212,565,672.40-1,818,848,508.60-753,400,648.40

Finding the Fourth Proportional to 1,212,565,672.40, 1,818,848,508.60 and 753,400,648.40

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Solution

The fourth proportional to 1,212,565,672.40, 1,818,848,508.60 and 753,400,648.40 is: 1,130,100,972.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,565,672.40 : 1,818,848,508.60 = 753,400,648.40 : x
  2. Step 2: Convert to fraction form
    1,212,565,672.40/1,818,848,508.60 = 753,400,648.40/x
  3. Step 3: Cross multiply
    1,212,565,672.40x = 1,818,848,508.60 × 753,400,648.40
  4. Step 4: Simplify right side
    1,212,565,672.40x = 1,370,321,645,720,612,864
  5. Step 5: Solve for x
    x = 1,370,321,645,720,612,864/1,212,565,672.40
  6. Step 6: Final answer
    x = 1,130,100,972.60

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1.5x scale

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.