Home / 2,018,844,909.40-3,028,550,799.30-638,515,485.40

Finding the Fourth Proportional to 2,018,844,909.40, 3,028,550,799.30 and 638,515,485.40

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Solution

The fourth proportional to 2,018,844,909.40, 3,028,550,799.30 and 638,515,485.40 is: 957,862,872.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,018,844,909.40 : 3,028,550,799.30 = 638,515,485.40 : x
  2. Step 2: Convert to fraction form
    2,018,844,909.40/3,028,550,799.30 = 638,515,485.40/x
  3. Step 3: Cross multiply
    2,018,844,909.40x = 3,028,550,799.30 × 638,515,485.40
  4. Step 4: Simplify right side
    2,018,844,909.40x = 1,933,776,583,673,597,440
  5. Step 5: Solve for x
    x = 1,933,776,583,673,597,440/2,018,844,909.40
  6. Step 6: Final answer
    x = 957,862,872.31

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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.