Home / 1,212,225,763.98-1,818,403,556.13-383,116,334.70

Finding the Fourth Proportional to 1,212,225,763.98, 1,818,403,556.13 and 383,116,334.70

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Solution

The fourth proportional to 1,212,225,763.98, 1,818,403,556.13 and 383,116,334.70 is: 574,695,016.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,225,763.98 : 1,818,403,556.13 = 383,116,334.70 : x
  2. Step 2: Convert to fraction form
    1,212,225,763.98/1,818,403,556.13 = 383,116,334.70/x
  3. Step 3: Cross multiply
    1,212,225,763.98x = 1,818,403,556.13 × 383,116,334.70
  4. Step 4: Simplify right side
    1,212,225,763.98x = 696,660,105,429,971,328
  5. Step 5: Solve for x
    x = 696,660,105,429,971,328/1,212,225,763.98
  6. Step 6: Final answer
    x = 574,695,016.50

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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.