Home / 143,576,542.40-215,364,813.60-128,049,425.60

Finding the Fourth Proportional to 143,576,542.40, 215,364,813.60 and 128,049,425.60

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Solution

The fourth proportional to 143,576,542.40, 215,364,813.60 and 128,049,425.60 is: 192,074,138.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,576,542.40 : 215,364,813.60 = 128,049,425.60 : x
  2. Step 2: Convert to fraction form
    143,576,542.40/215,364,813.60 = 128,049,425.60/x
  3. Step 3: Cross multiply
    143,576,542.40x = 215,364,813.60 × 128,049,425.60
  4. Step 4: Simplify right side
    143,576,542.40x = 27,577,340,675,931,068
  5. Step 5: Solve for x
    x = 27,577,340,675,931,068/143,576,542.40
  6. Step 6: Final answer
    x = 192,074,138.40

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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.