Home / 287,864,136.90-431,796,205.35-236,208,071.70

Finding the Fourth Proportional to 287,864,136.90, 431,796,205.35 and 236,208,071.70

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Solution

The fourth proportional to 287,864,136.90, 431,796,205.35 and 236,208,071.70 is: 354,312,107.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,864,136.90 : 431,796,205.35 = 236,208,071.70 : x
  2. Step 2: Convert to fraction form
    287,864,136.90/431,796,205.35 = 236,208,071.70/x
  3. Step 3: Cross multiply
    287,864,136.90x = 431,796,205.35 × 236,208,071.70
  4. Step 4: Simplify right side
    287,864,136.90x = 101,993,749,033,100,720
  5. Step 5: Solve for x
    x = 101,993,749,033,100,720/287,864,136.90
  6. Step 6: Final answer
    x = 354,312,107.55

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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.