Home / 1,206,804,619.60-1,810,206,929.40-431,325,912.40

Finding the Fourth Proportional to 1,206,804,619.60, 1,810,206,929.40 and 431,325,912.40

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Solution

The fourth proportional to 1,206,804,619.60, 1,810,206,929.40 and 431,325,912.40 is: 646,988,868.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206,804,619.60 : 1,810,206,929.40 = 431,325,912.40 : x
  2. Step 2: Convert to fraction form
    1,206,804,619.60/1,810,206,929.40 = 431,325,912.40/x
  3. Step 3: Cross multiply
    1,206,804,619.60x = 1,810,206,929.40 × 431,325,912.40
  4. Step 4: Simplify right side
    1,206,804,619.60x = 780,789,155,456,257,408
  5. Step 5: Solve for x
    x = 780,789,155,456,257,408/1,206,804,619.60
  6. Step 6: Final answer
    x = 646,988,868.60

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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.