Home / 831,731,775.40-1,247,597,663.10-218,378,002.60

Finding the Fourth Proportional to 831,731,775.40, 1,247,597,663.10 and 218,378,002.60

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Solution

The fourth proportional to 831,731,775.40, 1,247,597,663.10 and 218,378,002.60 is: 327,567,003.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,731,775.40 : 1,247,597,663.10 = 218,378,002.60 : x
  2. Step 2: Convert to fraction form
    831,731,775.40/1,247,597,663.10 = 218,378,002.60/x
  3. Step 3: Cross multiply
    831,731,775.40x = 1,247,597,663.10 × 218,378,002.60
  4. Step 4: Simplify right side
    831,731,775.40x = 272,447,885,716,205,696
  5. Step 5: Solve for x
    x = 272,447,885,716,205,696/831,731,775.40
  6. Step 6: Final answer
    x = 327,567,003.90

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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.