Home / 427,171,702.72-589,461,316.60-395,938,915.12

Finding the Fourth Proportional to 427,171,702.72, 589,461,316.60 and 395,938,915.12

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Solution

The fourth proportional to 427,171,702.72, 589,461,316.60 and 395,938,915.12 is: 546,362,675.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,171,702.72 : 589,461,316.60 = 395,938,915.12 : x
  2. Step 2: Convert to fraction form
    427,171,702.72/589,461,316.60 = 395,938,915.12/x
  3. Step 3: Cross multiply
    427,171,702.72x = 589,461,316.60 × 395,938,915.12
  4. Step 4: Simplify right side
    427,171,702.72x = 233,390,674,199,810,848
  5. Step 5: Solve for x
    x = 233,390,674,199,810,848/427,171,702.72
  6. Step 6: Final answer
    x = 546,362,675.04

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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.