Home / 320,495,919.37-480,743,131.55-210,525,746.65

Finding the Fourth Proportional to 320,495,919.37, 480,743,131.55 and 210,525,746.65

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Solution

The fourth proportional to 320,495,919.37, 480,743,131.55 and 210,525,746.65 is: 315,788,128.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,495,919.37 : 480,743,131.55 = 210,525,746.65 : x
  2. Step 2: Convert to fraction form
    320,495,919.37/480,743,131.55 = 210,525,746.65/x
  3. Step 3: Cross multiply
    320,495,919.37x = 480,743,131.55 × 210,525,746.65
  4. Step 4: Simplify right side
    320,495,919.37x = 101,208,806,715,370,304
  5. Step 5: Solve for x
    x = 101,208,806,715,370,304/320,495,919.37
  6. Step 6: Final answer
    x = 315,788,128.95

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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.