Home / 918,914,668.19-1,379,035,981.49-365,898,388.40

Finding the Fourth Proportional to 918,914,668.19, 1,379,035,981.49 and 365,898,388.40

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Solution

The fourth proportional to 918,914,668.19, 1,379,035,981.49 and 365,898,388.40 is: 549,111,969.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,914,668.19 : 1,379,035,981.49 = 365,898,388.40 : x
  2. Step 2: Convert to fraction form
    918,914,668.19/1,379,035,981.49 = 365,898,388.40/x
  3. Step 3: Cross multiply
    918,914,668.19x = 1,379,035,981.49 × 365,898,388.40
  4. Step 4: Simplify right side
    918,914,668.19x = 504,587,043,164,078,464
  5. Step 5: Solve for x
    x = 504,587,043,164,078,464/918,914,668.19
  6. Step 6: Final answer
    x = 549,111,969.41

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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.