Home / 140,241,410.80-210,362,116.20-128,762,285.20

Finding the Fourth Proportional to 140,241,410.80, 210,362,116.20 and 128,762,285.20

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Solution

The fourth proportional to 140,241,410.80, 210,362,116.20 and 128,762,285.20 is: 193,143,427.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,241,410.80 : 210,362,116.20 = 128,762,285.20 : x
  2. Step 2: Convert to fraction form
    140,241,410.80/210,362,116.20 = 128,762,285.20/x
  3. Step 3: Cross multiply
    140,241,410.80x = 210,362,116.20 × 128,762,285.20
  4. Step 4: Simplify right side
    140,241,410.80x = 27,086,706,801,419,940
  5. Step 5: Solve for x
    x = 27,086,706,801,419,940/140,241,410.80
  6. Step 6: Final answer
    x = 193,143,427.80

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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.