Home / 454,809,987.20-682,214,980.80-163,686,607.40

Finding the Fourth Proportional to 454,809,987.20, 682,214,980.80 and 163,686,607.40

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Solution

The fourth proportional to 454,809,987.20, 682,214,980.80 and 163,686,607.40 is: 245,529,911.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,809,987.20 : 682,214,980.80 = 163,686,607.40 : x
  2. Step 2: Convert to fraction form
    454,809,987.20/682,214,980.80 = 163,686,607.40/x
  3. Step 3: Cross multiply
    454,809,987.20x = 682,214,980.80 × 163,686,607.40
  4. Step 4: Simplify right side
    454,809,987.20x = 111,669,455,724,608,128
  5. Step 5: Solve for x
    x = 111,669,455,724,608,128/454,809,987.20
  6. Step 6: Final answer
    x = 245,529,911.10

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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.