Home / 702,085,915.32-968,412,043.06-451,507,111.64

Finding the Fourth Proportional to 702,085,915.32, 968,412,043.06 and 451,507,111.64

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Solution

The fourth proportional to 702,085,915.32, 968,412,043.06 and 451,507,111.64 is: 622,779,797.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,085,915.32 : 968,412,043.06 = 451,507,111.64 : x
  2. Step 2: Convert to fraction form
    702,085,915.32/968,412,043.06 = 451,507,111.64/x
  3. Step 3: Cross multiply
    702,085,915.32x = 968,412,043.06 × 451,507,111.64
  4. Step 4: Simplify right side
    702,085,915.32x = 437,244,924,439,411,840
  5. Step 5: Solve for x
    x = 437,244,924,439,411,840/702,085,915.32
  6. Step 6: Final answer
    x = 622,779,797.88

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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.