Home / 490,090,694.40-735,136,041.60-379,125,813.60

Finding the Fourth Proportional to 490,090,694.40, 735,136,041.60 and 379,125,813.60

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Solution

The fourth proportional to 490,090,694.40, 735,136,041.60 and 379,125,813.60 is: 568,688,720.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,090,694.40 : 735,136,041.60 = 379,125,813.60 : x
  2. Step 2: Convert to fraction form
    490,090,694.40/735,136,041.60 = 379,125,813.60/x
  3. Step 3: Cross multiply
    490,090,694.40x = 735,136,041.60 × 379,125,813.60
  4. Step 4: Simplify right side
    490,090,694.40x = 278,709,049,878,283,488
  5. Step 5: Solve for x
    x = 278,709,049,878,283,488/490,090,694.40
  6. Step 6: Final answer
    x = 568,688,720.40

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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.