Home / 651,504,910.70-977,257,366.05-393,012,008.30

Finding the Fourth Proportional to 651,504,910.70, 977,257,366.05 and 393,012,008.30

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Solution

The fourth proportional to 651,504,910.70, 977,257,366.05 and 393,012,008.30 is: 589,518,012.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,504,910.70 : 977,257,366.05 = 393,012,008.30 : x
  2. Step 2: Convert to fraction form
    651,504,910.70/977,257,366.05 = 393,012,008.30/x
  3. Step 3: Cross multiply
    651,504,910.70x = 977,257,366.05 × 393,012,008.30
  4. Step 4: Simplify right side
    651,504,910.70x = 384,073,880,057,278,720
  5. Step 5: Solve for x
    x = 384,073,880,057,278,720/651,504,910.70
  6. Step 6: Final answer
    x = 589,518,012.45

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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.