Home / 280,155,242.34-420,870,592.68-202,671,144.54

Finding the Fourth Proportional to 280,155,242.34, 420,870,592.68 and 202,671,144.54

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Solution

The fourth proportional to 280,155,242.34, 420,870,592.68 and 202,671,144.54 is: 304,468,065.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,155,242.34 : 420,870,592.68 = 202,671,144.54 : x
  2. Step 2: Convert to fraction form
    280,155,242.34/420,870,592.68 = 202,671,144.54/x
  3. Step 3: Cross multiply
    280,155,242.34x = 420,870,592.68 × 202,671,144.54
  4. Step 4: Simplify right side
    280,155,242.34x = 85,298,324,721,683,744
  5. Step 5: Solve for x
    x = 85,298,324,721,683,744/280,155,242.34
  6. Step 6: Final answer
    x = 304,468,065.67

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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.