Home / 653,246,541.20-979,869,811.80-492,003,405.20

Finding the Fourth Proportional to 653,246,541.20, 979,869,811.80 and 492,003,405.20

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Solution

The fourth proportional to 653,246,541.20, 979,869,811.80 and 492,003,405.20 is: 738,005,107.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,246,541.20 : 979,869,811.80 = 492,003,405.20 : x
  2. Step 2: Convert to fraction form
    653,246,541.20/979,869,811.80 = 492,003,405.20/x
  3. Step 3: Cross multiply
    653,246,541.20x = 979,869,811.80 × 492,003,405.20
  4. Step 4: Simplify right side
    653,246,541.20x = 482,099,284,058,283,136
  5. Step 5: Solve for x
    x = 482,099,284,058,283,136/653,246,541.20
  6. Step 6: Final answer
    x = 738,005,107.80

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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.