Home / 847,872,028.80-1,271,808,043.20-842,497,257.60

Finding the Fourth Proportional to 847,872,028.80, 1,271,808,043.20 and 842,497,257.60

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Solution

The fourth proportional to 847,872,028.80, 1,271,808,043.20 and 842,497,257.60 is: 1,263,745,886.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,872,028.80 : 1,271,808,043.20 = 842,497,257.60 : x
  2. Step 2: Convert to fraction form
    847,872,028.80/1,271,808,043.20 = 842,497,257.60/x
  3. Step 3: Cross multiply
    847,872,028.80x = 1,271,808,043.20 × 842,497,257.60
  4. Step 4: Simplify right side
    847,872,028.80x = 1,071,494,788,589,622,400
  5. Step 5: Solve for x
    x = 1,071,494,788,589,622,400/847,872,028.80
  6. Step 6: Final answer
    x = 1,263,745,886.40

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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.