Home / 2,808,125,074.20-4,212,187,611.30-1,991,831,698.20

Finding the Fourth Proportional to 2,808,125,074.20, 4,212,187,611.30 and 1,991,831,698.20

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Solution

The fourth proportional to 2,808,125,074.20, 4,212,187,611.30 and 1,991,831,698.20 is: 2,987,747,547.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,808,125,074.20 : 4,212,187,611.30 = 1,991,831,698.20 : x
  2. Step 2: Convert to fraction form
    2,808,125,074.20/4,212,187,611.30 = 1,991,831,698.20/x
  3. Step 3: Cross multiply
    2,808,125,074.20x = 4,212,187,611.30 × 1,991,831,698.20
  4. Step 4: Simplify right side
    2,808,125,074.20x = 8,389,968,802,952,681,472
  5. Step 5: Solve for x
    x = 8,389,968,802,952,681,472/2,808,125,074.20
  6. Step 6: Final answer
    x = 2,987,747,547.30

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Double scale
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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.