Home / 674,734,936.40-1,012,102,404.60-402,413,195.60

Finding the Fourth Proportional to 674,734,936.40, 1,012,102,404.60 and 402,413,195.60

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Solution

The fourth proportional to 674,734,936.40, 1,012,102,404.60 and 402,413,195.60 is: 603,619,793.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,734,936.40 : 1,012,102,404.60 = 402,413,195.60 : x
  2. Step 2: Convert to fraction form
    674,734,936.40/1,012,102,404.60 = 402,413,195.60/x
  3. Step 3: Cross multiply
    674,734,936.40x = 1,012,102,404.60 × 402,413,195.60
  4. Step 4: Simplify right side
    674,734,936.40x = 407,283,362,909,530,176
  5. Step 5: Solve for x
    x = 407,283,362,909,530,176/674,734,936.40
  6. Step 6: Final answer
    x = 603,619,793.40

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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.