Home / 468,649,138.20-702,973,707.30-392,688,504.60

Finding the Fourth Proportional to 468,649,138.20, 702,973,707.30 and 392,688,504.60

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Solution

The fourth proportional to 468,649,138.20, 702,973,707.30 and 392,688,504.60 is: 589,032,756.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,649,138.20 : 702,973,707.30 = 392,688,504.60 : x
  2. Step 2: Convert to fraction form
    468,649,138.20/702,973,707.30 = 392,688,504.60/x
  3. Step 3: Cross multiply
    468,649,138.20x = 702,973,707.30 × 392,688,504.60
  4. Step 4: Simplify right side
    468,649,138.20x = 276,049,693,892,755,104
  5. Step 5: Solve for x
    x = 276,049,693,892,755,104/468,649,138.20
  6. Step 6: Final answer
    x = 589,032,756.90

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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.