Home / 28,257,725,408.20-42,386,588,112.30-8,628,389,139.40

Finding the Fourth Proportional to 28,257,725,408.20, 42,386,588,112.30 and 8,628,389,139.40

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Solution

The fourth proportional to 28,257,725,408.20, 42,386,588,112.30 and 8,628,389,139.40 is: 12,942,583,709.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,257,725,408.20 : 42,386,588,112.30 = 8,628,389,139.40 : x
  2. Step 2: Convert to fraction form
    28,257,725,408.20/42,386,588,112.30 = 8,628,389,139.40/x
  3. Step 3: Cross multiply
    28,257,725,408.20x = 42,386,588,112.30 × 8,628,389,139.40
  4. Step 4: Simplify right side
    28,257,725,408.20x = 365,727,976,524,390,465,536
  5. Step 5: Solve for x
    x = 365,727,976,524,390,465,536/28,257,725,408.20
  6. Step 6: Final answer
    x = 12,942,583,709.10

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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.