Home / 993,834,136.80-1,490,751,205.20-339,523,977.60

Finding the Fourth Proportional to 993,834,136.80, 1,490,751,205.20 and 339,523,977.60

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Solution

The fourth proportional to 993,834,136.80, 1,490,751,205.20 and 339,523,977.60 is: 509,285,966.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,834,136.80 : 1,490,751,205.20 = 339,523,977.60 : x
  2. Step 2: Convert to fraction form
    993,834,136.80/1,490,751,205.20 = 339,523,977.60/x
  3. Step 3: Cross multiply
    993,834,136.80x = 1,490,751,205.20 × 339,523,977.60
  4. Step 4: Simplify right side
    993,834,136.80x = 506,145,778,801,497,856
  5. Step 5: Solve for x
    x = 506,145,778,801,497,856/993,834,136.80
  6. Step 6: Final answer
    x = 509,285,966.40

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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.