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Finding the Fourth Proportional to 620,906,994.11, 931,360,492.08 and 252,355,598.48

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Solution

The fourth proportional to 620,906,994.11, 931,360,492.08 and 252,355,598.48 is: 378,533,398.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,906,994.11 : 931,360,492.08 = 252,355,598.48 : x
  2. Step 2: Convert to fraction form
    620,906,994.11/931,360,492.08 = 252,355,598.48/x
  3. Step 3: Cross multiply
    620,906,994.11x = 931,360,492.08 × 252,355,598.48
  4. Step 4: Simplify right side
    620,906,994.11x = 235,034,034,381,804,096
  5. Step 5: Solve for x
    x = 235,034,034,381,804,096/620,906,994.11
  6. Step 6: Final answer
    x = 378,533,398.09

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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.