Home / 1,431,340,016.40-2,145,750,312.60-969,781,539.60

Finding the Fourth Proportional to 1,431,340,016.40, 2,145,750,312.60 and 969,781,539.60

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Solution

The fourth proportional to 1,431,340,016.40, 2,145,750,312.60 and 969,781,539.60 is: 1,453,818,811.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,340,016.40 : 2,145,750,312.60 = 969,781,539.60 : x
  2. Step 2: Convert to fraction form
    1,431,340,016.40/2,145,750,312.60 = 969,781,539.60/x
  3. Step 3: Cross multiply
    1,431,340,016.40x = 2,145,750,312.60 × 969,781,539.60
  4. Step 4: Simplify right side
    1,431,340,016.40x = 2,080,909,041,750,409,216
  5. Step 5: Solve for x
    x = 2,080,909,041,750,409,216/1,431,340,016.40
  6. Step 6: Final answer
    x = 1,453,818,811.68

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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.