Home / 879,585,906.65-1,213,852,255.16-517,505,144.05

Finding the Fourth Proportional to 879,585,906.65, 1,213,852,255.16 and 517,505,144.05

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Solution

The fourth proportional to 879,585,906.65, 1,213,852,255.16 and 517,505,144.05 is: 714,171,045.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,585,906.65 : 1,213,852,255.16 = 517,505,144.05 : x
  2. Step 2: Convert to fraction form
    879,585,906.65/1,213,852,255.16 = 517,505,144.05/x
  3. Step 3: Cross multiply
    879,585,906.65x = 1,213,852,255.16 × 517,505,144.05
  4. Step 4: Simplify right side
    879,585,906.65x = 628,174,786,156,395,264
  5. Step 5: Solve for x
    x = 628,174,786,156,395,264/879,585,906.65
  6. Step 6: Final answer
    x = 714,171,045.05

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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.