Home / 1,087,708,819.37-1,630,895,059.27-422,947,967.72

Finding the Fourth Proportional to 1,087,708,819.37, 1,630,895,059.27 and 422,947,967.72

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Solution

The fourth proportional to 1,087,708,819.37, 1,630,895,059.27 and 422,947,967.72 is: 634,162,138.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,708,819.37 : 1,630,895,059.27 = 422,947,967.72 : x
  2. Step 2: Convert to fraction form
    1,087,708,819.37/1,630,895,059.27 = 422,947,967.72/x
  3. Step 3: Cross multiply
    1,087,708,819.37x = 1,630,895,059.27 × 422,947,967.72
  4. Step 4: Simplify right side
    1,087,708,819.37x = 689,783,750,881,778,048
  5. Step 5: Solve for x
    x = 689,783,750,881,778,048/1,087,708,819.37
  6. Step 6: Final answer
    x = 634,162,138.43

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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.