Home / 143,576,594.40-215,364,891.60-128,049,477.60

Finding the Fourth Proportional to 143,576,594.40, 215,364,891.60 and 128,049,477.60

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Solution

The fourth proportional to 143,576,594.40, 215,364,891.60 and 128,049,477.60 is: 192,074,216.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,576,594.40 : 215,364,891.60 = 128,049,477.60 : x
  2. Step 2: Convert to fraction form
    143,576,594.40/215,364,891.60 = 128,049,477.60/x
  3. Step 3: Cross multiply
    143,576,594.40x = 215,364,891.60 × 128,049,477.60
  4. Step 4: Simplify right side
    143,576,594.40x = 27,577,361,862,760,628
  5. Step 5: Solve for x
    x = 27,577,361,862,760,628/143,576,594.40
  6. Step 6: Final answer
    x = 192,074,216.40

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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.