Home / 1,087,708,817.40-1,630,895,056.32-422,947,965.76

Finding the Fourth Proportional to 1,087,708,817.40, 1,630,895,056.32 and 422,947,965.76

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Solution

The fourth proportional to 1,087,708,817.40, 1,630,895,056.32 and 422,947,965.76 is: 634,162,135.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,708,817.40 : 1,630,895,056.32 = 422,947,965.76 : x
  2. Step 2: Convert to fraction form
    1,087,708,817.40/1,630,895,056.32 = 422,947,965.76/x
  3. Step 3: Cross multiply
    1,087,708,817.40x = 1,630,895,056.32 × 422,947,965.76
  4. Step 4: Simplify right side
    1,087,708,817.40x = 689,783,746,442,922,240
  5. Step 5: Solve for x
    x = 689,783,746,442,922,240/1,087,708,817.40
  6. Step 6: Final answer
    x = 634,162,135.50

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Double scale
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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.