Home / 212,977,885.70-291,778,342.30-205,013,503.24

Finding the Fourth Proportional to 212,977,885.70, 291,778,342.30 and 205,013,503.24

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Solution

The fourth proportional to 212,977,885.70, 291,778,342.30 and 205,013,503.24 is: 280,867,189.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,977,885.70 : 291,778,342.30 = 205,013,503.24 : x
  2. Step 2: Convert to fraction form
    212,977,885.70/291,778,342.30 = 205,013,503.24/x
  3. Step 3: Cross multiply
    212,977,885.70x = 291,778,342.30 × 205,013,503.24
  4. Step 4: Simplify right side
    212,977,885.70x = 59,818,500,121,998,928
  5. Step 5: Solve for x
    x = 59,818,500,121,998,928/212,977,885.70
  6. Step 6: Final answer
    x = 280,867,189.22

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.