Home / 1,040,235,874.60-1,560,353,811.90-427,260,015.40

Finding the Fourth Proportional to 1,040,235,874.60, 1,560,353,811.90 and 427,260,015.40

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Solution

The fourth proportional to 1,040,235,874.60, 1,560,353,811.90 and 427,260,015.40 is: 640,890,023.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,235,874.60 : 1,560,353,811.90 = 427,260,015.40 : x
  2. Step 2: Convert to fraction form
    1,040,235,874.60/1,560,353,811.90 = 427,260,015.40/x
  3. Step 3: Cross multiply
    1,040,235,874.60x = 1,560,353,811.90 × 427,260,015.40
  4. Step 4: Simplify right side
    1,040,235,874.60x = 666,676,793,701,842,688
  5. Step 5: Solve for x
    x = 666,676,793,701,842,688/1,040,235,874.60
  6. Step 6: Final answer
    x = 640,890,023.10

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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.