Home / 438,511,808.75-657,850,672.37-176,216,778.16

Finding the Fourth Proportional to 438,511,808.75, 657,850,672.37 and 176,216,778.16

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Solution

The fourth proportional to 438,511,808.75, 657,850,672.37 and 176,216,778.16 is: 264,358,504.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,511,808.75 : 657,850,672.37 = 176,216,778.16 : x
  2. Step 2: Convert to fraction form
    438,511,808.75/657,850,672.37 = 176,216,778.16/x
  3. Step 3: Cross multiply
    438,511,808.75x = 657,850,672.37 × 176,216,778.16
  4. Step 4: Simplify right side
    438,511,808.75x = 115,924,325,994,227,040
  5. Step 5: Solve for x
    x = 115,924,325,994,227,040/438,511,808.75
  6. Step 6: Final answer
    x = 264,358,504.57

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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.