Home / 1,206,804,518.60-1,810,206,777.90-431,325,811.40

Finding the Fourth Proportional to 1,206,804,518.60, 1,810,206,777.90 and 431,325,811.40

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Solution

The fourth proportional to 1,206,804,518.60, 1,810,206,777.90 and 431,325,811.40 is: 646,988,717.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206,804,518.60 : 1,810,206,777.90 = 431,325,811.40 : x
  2. Step 2: Convert to fraction form
    1,206,804,518.60/1,810,206,777.90 = 431,325,811.40/x
  3. Step 3: Cross multiply
    1,206,804,518.60x = 1,810,206,777.90 × 431,325,811.40
  4. Step 4: Simplify right side
    1,206,804,518.60x = 780,788,907,279,497,088
  5. Step 5: Solve for x
    x = 780,788,907,279,497,088/1,206,804,518.60
  6. Step 6: Final answer
    x = 646,988,717.10

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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.