Home / 387,903,598.20-535,318,303.68-211,702,902.03

Finding the Fourth Proportional to 387,903,598.20, 535,318,303.68 and 211,702,902.03

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Solution

The fourth proportional to 387,903,598.20, 535,318,303.68 and 211,702,902.03 is: 292,156,192.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,903,598.20 : 535,318,303.68 = 211,702,902.03 : x
  2. Step 2: Convert to fraction form
    387,903,598.20/535,318,303.68 = 211,702,902.03/x
  3. Step 3: Cross multiply
    387,903,598.20x = 535,318,303.68 × 211,702,902.03
  4. Step 4: Simplify right side
    387,903,598.20x = 113,328,438,398,832,832
  5. Step 5: Solve for x
    x = 113,328,438,398,832,832/387,903,598.20
  6. Step 6: Final answer
    x = 292,156,192.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.