Home / 143,576,595.40-215,364,893.10-128,049,478.60

Finding the Fourth Proportional to 143,576,595.40, 215,364,893.10 and 128,049,478.60

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Solution

The fourth proportional to 143,576,595.40, 215,364,893.10 and 128,049,478.60 is: 192,074,217.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,576,595.40 : 215,364,893.10 = 128,049,478.60 : x
  2. Step 2: Convert to fraction form
    143,576,595.40/215,364,893.10 = 128,049,478.60/x
  3. Step 3: Cross multiply
    143,576,595.40x = 215,364,893.10 × 128,049,478.60
  4. Step 4: Simplify right side
    143,576,595.40x = 27,577,362,270,199,736
  5. Step 5: Solve for x
    x = 27,577,362,270,199,736/143,576,595.40
  6. Step 6: Final answer
    x = 192,074,217.90

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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.