Home / 161,707,406.40-242,571,607.20-85,179,902.40

Finding the Fourth Proportional to 161,707,406.40, 242,571,607.20 and 85,179,902.40

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Solution

The fourth proportional to 161,707,406.40, 242,571,607.20 and 85,179,902.40 is: 127,775,383.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,707,406.40 : 242,571,607.20 = 85,179,902.40 : x
  2. Step 2: Convert to fraction form
    161,707,406.40/242,571,607.20 = 85,179,902.40/x
  3. Step 3: Cross multiply
    161,707,406.40x = 242,571,607.20 × 85,179,902.40
  4. Step 4: Simplify right side
    161,707,406.40x = 20,662,225,826,307,136
  5. Step 5: Solve for x
    x = 20,662,225,826,307,136/161,707,406.40
  6. Step 6: Final answer
    x = 127,775,383.24

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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.