Home / 355,279,940.22-490,136,186.79-237,843,106.77

Finding the Fourth Proportional to 355,279,940.22, 490,136,186.79 and 237,843,106.77

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Solution

The fourth proportional to 355,279,940.22, 490,136,186.79 and 237,843,106.77 is: 328,122,981.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,279,940.22 : 490,136,186.79 = 237,843,106.77 : x
  2. Step 2: Convert to fraction form
    355,279,940.22/490,136,186.79 = 237,843,106.77/x
  3. Step 3: Cross multiply
    355,279,940.22x = 490,136,186.79 × 237,843,106.77
  4. Step 4: Simplify right side
    355,279,940.22x = 116,575,513,406,534,640
  5. Step 5: Solve for x
    x = 116,575,513,406,534,640/355,279,940.22
  6. Step 6: Final answer
    x = 328,122,981.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.