Home / 438,048,564.40-657,072,846.60-265,719,962.80

Finding the Fourth Proportional to 438,048,564.40, 657,072,846.60 and 265,719,962.80

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Solution

The fourth proportional to 438,048,564.40, 657,072,846.60 and 265,719,962.80 is: 398,579,944.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,048,564.40 : 657,072,846.60 = 265,719,962.80 : x
  2. Step 2: Convert to fraction form
    438,048,564.40/657,072,846.60 = 265,719,962.80/x
  3. Step 3: Cross multiply
    438,048,564.40x = 657,072,846.60 × 265,719,962.80
  4. Step 4: Simplify right side
    438,048,564.40x = 174,597,372,355,442,112
  5. Step 5: Solve for x
    x = 174,597,372,355,442,112/438,048,564.40
  6. Step 6: Final answer
    x = 398,579,944.20

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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.