Home / 386,714,399.04-533,672,673.12-210,507,459.12

Finding the Fourth Proportional to 386,714,399.04, 533,672,673.12 and 210,507,459.12

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Solution

The fourth proportional to 386,714,399.04, 533,672,673.12 and 210,507,459.12 is: 290,503,996.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,714,399.04 : 533,672,673.12 = 210,507,459.12 : x
  2. Step 2: Convert to fraction form
    386,714,399.04/533,672,673.12 = 210,507,459.12/x
  3. Step 3: Cross multiply
    386,714,399.04x = 533,672,673.12 × 210,507,459.12
  4. Step 4: Simplify right side
    386,714,399.04x = 112,342,078,420,269,520
  5. Step 5: Solve for x
    x = 112,342,078,420,269,520/386,714,399.04
  6. Step 6: Final answer
    x = 290,503,996.49

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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.