Home / 1,206,804,587.35-1,810,206,881.03-431,325,880.15

Finding the Fourth Proportional to 1,206,804,587.35, 1,810,206,881.03 and 431,325,880.15

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Solution

The fourth proportional to 1,206,804,587.35, 1,810,206,881.03 and 431,325,880.15 is: 646,988,820.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206,804,587.35 : 1,810,206,881.03 = 431,325,880.15 : x
  2. Step 2: Convert to fraction form
    1,206,804,587.35/1,810,206,881.03 = 431,325,880.15/x
  3. Step 3: Cross multiply
    1,206,804,587.35x = 1,810,206,881.03 × 431,325,880.15
  4. Step 4: Simplify right side
    1,206,804,587.35x = 780,789,076,213,851,008
  5. Step 5: Solve for x
    x = 780,789,076,213,851,008/1,206,804,587.35
  6. Step 6: Final answer
    x = 646,988,820.23

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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.