Home / 1,086,009,081.30-1,629,013,621.95-395,938,847.70

Finding the Fourth Proportional to 1,086,009,081.30, 1,629,013,621.95 and 395,938,847.70

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Solution

The fourth proportional to 1,086,009,081.30, 1,629,013,621.95 and 395,938,847.70 is: 593,908,271.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,009,081.30 : 1,629,013,621.95 = 395,938,847.70 : x
  2. Step 2: Convert to fraction form
    1,086,009,081.30/1,629,013,621.95 = 395,938,847.70/x
  3. Step 3: Cross multiply
    1,086,009,081.30x = 1,629,013,621.95 × 395,938,847.70
  4. Step 4: Simplify right side
    1,086,009,081.30x = 644,989,776,362,486,400
  5. Step 5: Solve for x
    x = 644,989,776,362,486,400/1,086,009,081.30
  6. Step 6: Final answer
    x = 593,908,271.55

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Double scale
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Similar ratio
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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.