Home / 256,829,427.20-385,244,140.80-164,996,422.40

Finding the Fourth Proportional to 256,829,427.20, 385,244,140.80 and 164,996,422.40

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Solution

The fourth proportional to 256,829,427.20, 385,244,140.80 and 164,996,422.40 is: 247,494,633.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,829,427.20 : 385,244,140.80 = 164,996,422.40 : x
  2. Step 2: Convert to fraction form
    256,829,427.20/385,244,140.80 = 164,996,422.40/x
  3. Step 3: Cross multiply
    256,829,427.20x = 385,244,140.80 × 164,996,422.40
  4. Step 4: Simplify right side
    256,829,427.20x = 63,563,904,982,561,880
  5. Step 5: Solve for x
    x = 63,563,904,982,561,880/256,829,427.20
  6. Step 6: Final answer
    x = 247,494,633.60

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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.