Home / 847,128,513.78-1,168,674,718.72-529,036,524.66

Finding the Fourth Proportional to 847,128,513.78, 1,168,674,718.72 and 529,036,524.66

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Solution

The fourth proportional to 847,128,513.78, 1,168,674,718.72 and 529,036,524.66 is: 729,843,939.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,128,513.78 : 1,168,674,718.72 = 529,036,524.66 : x
  2. Step 2: Convert to fraction form
    847,128,513.78/1,168,674,718.72 = 529,036,524.66/x
  3. Step 3: Cross multiply
    847,128,513.78x = 1,168,674,718.72 × 529,036,524.66
  4. Step 4: Simplify right side
    847,128,513.78x = 618,271,611,649,631,872
  5. Step 5: Solve for x
    x = 618,271,611,649,631,872/847,128,513.78
  6. Step 6: Final answer
    x = 729,843,939.37

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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.