Home / 190,340,513.55-285,516,978.17-90,608,518.35

Finding the Fourth Proportional to 190,340,513.55, 285,516,978.17 and 90,608,518.35

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Solution

The fourth proportional to 190,340,513.55, 285,516,978.17 and 90,608,518.35 is: 135,915,732.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,340,513.55 : 285,516,978.17 = 90,608,518.35 : x
  2. Step 2: Convert to fraction form
    190,340,513.55/285,516,978.17 = 90,608,518.35/x
  3. Step 3: Cross multiply
    190,340,513.55x = 285,516,978.17 × 90,608,518.35
  4. Step 4: Simplify right side
    190,340,513.55x = 25,870,270,355,299,952
  5. Step 5: Solve for x
    x = 25,870,270,355,299,952/190,340,513.55
  6. Step 6: Final answer
    x = 135,915,732.67

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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.