Home / 621,081,574.20-930,831,104.70-330,088,102.20

Finding the Fourth Proportional to 621,081,574.20, 930,831,104.70 and 330,088,102.20

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Solution

The fourth proportional to 621,081,574.20, 930,831,104.70 and 330,088,102.20 is: 494,711,621.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,081,574.20 : 930,831,104.70 = 330,088,102.20 : x
  2. Step 2: Convert to fraction form
    621,081,574.20/930,831,104.70 = 330,088,102.20/x
  3. Step 3: Cross multiply
    621,081,574.20x = 930,831,104.70 × 330,088,102.20
  4. Step 4: Simplify right side
    621,081,574.20x = 307,256,272,819,152,512
  5. Step 5: Solve for x
    x = 307,256,272,819,152,512/621,081,574.20
  6. Step 6: Final answer
    x = 494,711,621.76

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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.