Home / 145,554,539.90-200,873,399.73-79,481,169.28

Finding the Fourth Proportional to 145,554,539.90, 200,873,399.73 and 79,481,169.28

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Solution

The fourth proportional to 145,554,539.90, 200,873,399.73 and 79,481,169.28 is: 109,688,455.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,554,539.90 : 200,873,399.73 = 79,481,169.28 : x
  2. Step 2: Convert to fraction form
    145,554,539.90/200,873,399.73 = 79,481,169.28/x
  3. Step 3: Cross multiply
    145,554,539.90x = 200,873,399.73 × 79,481,169.28
  4. Step 4: Simplify right side
    145,554,539.90x = 15,965,652,687,789,236
  5. Step 5: Solve for x
    x = 15,965,652,687,789,236/145,554,539.90
  6. Step 6: Final answer
    x = 109,688,455.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.