Home / 1,275,755,401.80-1,912,121,448.30-538,823,881.80

Finding the Fourth Proportional to 1,275,755,401.80, 1,912,121,448.30 and 538,823,881.80

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Solution

The fourth proportional to 1,275,755,401.80, 1,912,121,448.30 and 538,823,881.80 is: 807,597,365.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275,755,401.80 : 1,912,121,448.30 = 538,823,881.80 : x
  2. Step 2: Convert to fraction form
    1,275,755,401.80/1,912,121,448.30 = 538,823,881.80/x
  3. Step 3: Cross multiply
    1,275,755,401.80x = 1,912,121,448.30 × 538,823,881.80
  4. Step 4: Simplify right side
    1,275,755,401.80x = 1,030,296,701,246,043,904
  5. Step 5: Solve for x
    x = 1,030,296,701,246,043,904/1,275,755,401.80
  6. Step 6: Final answer
    x = 807,597,365.29

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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.