Home / 115,821,630.40-173,618,167.20-64,728,126.40

Finding the Fourth Proportional to 115,821,630.40, 173,618,167.20 and 64,728,126.40

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Solution

The fourth proportional to 115,821,630.40, 173,618,167.20 and 64,728,126.40 is: 97,028,323.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,821,630.40 : 173,618,167.20 = 64,728,126.40 : x
  2. Step 2: Convert to fraction form
    115,821,630.40/173,618,167.20 = 64,728,126.40/x
  3. Step 3: Cross multiply
    115,821,630.40x = 173,618,167.20 × 64,728,126.40
  4. Step 4: Simplify right side
    115,821,630.40x = 11,237,978,671,857,934
  5. Step 5: Solve for x
    x = 11,237,978,671,857,934/115,821,630.40
  6. Step 6: Final answer
    x = 97,028,323.92

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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.