Home / 2,808,133,045.20-4,212,199,567.80-1,991,839,669.20

Finding the Fourth Proportional to 2,808,133,045.20, 4,212,199,567.80 and 1,991,839,669.20

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Solution

The fourth proportional to 2,808,133,045.20, 4,212,199,567.80 and 1,991,839,669.20 is: 2,987,759,503.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,808,133,045.20 : 4,212,199,567.80 = 1,991,839,669.20 : x
  2. Step 2: Convert to fraction form
    2,808,133,045.20/4,212,199,567.80 = 1,991,839,669.20/x
  3. Step 3: Cross multiply
    2,808,133,045.20x = 4,212,199,567.80 × 1,991,839,669.20
  4. Step 4: Simplify right side
    2,808,133,045.20x = 8,390,026,193,731,135,488
  5. Step 5: Solve for x
    x = 8,390,026,193,731,135,488/2,808,133,045.20
  6. Step 6: Final answer
    x = 2,987,759,503.80

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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.