Home / 30,903,529.28-46,320,031.45-12,447,661.70

Finding the Fourth Proportional to 30,903,529.28, 46,320,031.45 and 12,447,661.70

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Solution

The fourth proportional to 30,903,529.28, 46,320,031.45 and 12,447,661.70 is: 18,657,289.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,903,529.28 : 46,320,031.45 = 12,447,661.70 : x
  2. Step 2: Convert to fraction form
    30,903,529.28/46,320,031.45 = 12,447,661.70/x
  3. Step 3: Cross multiply
    30,903,529.28x = 46,320,031.45 × 12,447,661.70
  4. Step 4: Simplify right side
    30,903,529.28x = 576,576,081,422,960.50
  5. Step 5: Solve for x
    x = 576,576,081,422,960.50/30,903,529.28
  6. Step 6: Final answer
    x = 18,657,289.15

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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.