Home / 142,114,008.48-196,035,469.92-85,559,383.68

Finding the Fourth Proportional to 142,114,008.48, 196,035,469.92 and 85,559,383.68

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Solution

The fourth proportional to 142,114,008.48, 196,035,469.92 and 85,559,383.68 is: 118,022,664.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,114,008.48 : 196,035,469.92 = 85,559,383.68 : x
  2. Step 2: Convert to fraction form
    142,114,008.48/196,035,469.92 = 85,559,383.68/x
  3. Step 3: Cross multiply
    142,114,008.48x = 196,035,469.92 × 85,559,383.68
  4. Step 4: Simplify right side
    142,114,008.48x = 16,772,673,985,774,380
  5. Step 5: Solve for x
    x = 16,772,673,985,774,380/142,114,008.48
  6. Step 6: Final answer
    x = 118,022,664.80

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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.