Home / 651,505,274.70-977,257,912.05-393,012,372.30

Finding the Fourth Proportional to 651,505,274.70, 977,257,912.05 and 393,012,372.30

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Solution

The fourth proportional to 651,505,274.70, 977,257,912.05 and 393,012,372.30 is: 589,518,558.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,505,274.70 : 977,257,912.05 = 393,012,372.30 : x
  2. Step 2: Convert to fraction form
    651,505,274.70/977,257,912.05 = 393,012,372.30/x
  3. Step 3: Cross multiply
    651,505,274.70x = 977,257,912.05 × 393,012,372.30
  4. Step 4: Simplify right side
    651,505,274.70x = 384,074,450,363,715,264
  5. Step 5: Solve for x
    x = 384,074,450,363,715,264/651,505,274.70
  6. Step 6: Final answer
    x = 589,518,558.45

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Double scale
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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.