Home / 215,683,697.20-323,525,545.80-161,935,985.20

Finding the Fourth Proportional to 215,683,697.20, 323,525,545.80 and 161,935,985.20

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Solution

The fourth proportional to 215,683,697.20, 323,525,545.80 and 161,935,985.20 is: 242,903,977.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,683,697.20 : 323,525,545.80 = 161,935,985.20 : x
  2. Step 2: Convert to fraction form
    215,683,697.20/323,525,545.80 = 161,935,985.20/x
  3. Step 3: Cross multiply
    215,683,697.20x = 323,525,545.80 × 161,935,985.20
  4. Step 4: Simplify right side
    215,683,697.20x = 52,390,427,996,490,720
  5. Step 5: Solve for x
    x = 52,390,427,996,490,720/215,683,697.20
  6. Step 6: Final answer
    x = 242,903,977.80

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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.