Home / 1,286,773,509.89-1,929,279,099.59-655,283,181.53

Finding the Fourth Proportional to 1,286,773,509.89, 1,929,279,099.59 and 655,283,181.53

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Solution

The fourth proportional to 1,286,773,509.89, 1,929,279,099.59 and 655,283,181.53 is: 982,476,043.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,773,509.89 : 1,929,279,099.59 = 655,283,181.53 : x
  2. Step 2: Convert to fraction form
    1,286,773,509.89/1,929,279,099.59 = 655,283,181.53/x
  3. Step 3: Cross multiply
    1,286,773,509.89x = 1,929,279,099.59 × 655,283,181.53
  4. Step 4: Simplify right side
    1,286,773,509.89x = 1,264,224,146,435,392,512
  5. Step 5: Solve for x
    x = 1,264,224,146,435,392,512/1,286,773,509.89
  6. Step 6: Final answer
    x = 982,476,043.16

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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.