Home / 2,805,213,605.40-4,205,045,105.10-1,328,758,314.30

Finding the Fourth Proportional to 2,805,213,605.40, 4,205,045,105.10 and 1,328,758,314.30

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Solution

The fourth proportional to 2,805,213,605.40, 4,205,045,105.10 and 1,328,758,314.30 is: 1,991,822,881.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,805,213,605.40 : 4,205,045,105.10 = 1,328,758,314.30 : x
  2. Step 2: Convert to fraction form
    2,805,213,605.40/4,205,045,105.10 = 1,328,758,314.30/x
  3. Step 3: Cross multiply
    2,805,213,605.40x = 4,205,045,105.10 × 1,328,758,314.30
  4. Step 4: Simplify right side
    2,805,213,605.40x = 5,587,488,645,408,142,336
  5. Step 5: Solve for x
    x = 5,587,488,645,408,142,336/2,805,213,605.40
  6. Step 6: Final answer
    x = 1,991,822,881.03

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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.