Home / 2,620,404,927.20-3,930,607,390.80-1,242,909,855.20

Finding the Fourth Proportional to 2,620,404,927.20, 3,930,607,390.80 and 1,242,909,855.20

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Solution

The fourth proportional to 2,620,404,927.20, 3,930,607,390.80 and 1,242,909,855.20 is: 1,864,364,782.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,620,404,927.20 : 3,930,607,390.80 = 1,242,909,855.20 : x
  2. Step 2: Convert to fraction form
    2,620,404,927.20/3,930,607,390.80 = 1,242,909,855.20/x
  3. Step 3: Cross multiply
    2,620,404,927.20x = 3,930,607,390.80 × 1,242,909,855.20
  4. Step 4: Simplify right side
    2,620,404,927.20x = 4,885,390,662,947,277,824
  5. Step 5: Solve for x
    x = 4,885,390,662,947,277,824/2,620,404,927.20
  6. Step 6: Final answer
    x = 1,864,364,782.80

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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.