Home / 316,931,742.66-437,204,835.45-206,987,811.78

Finding the Fourth Proportional to 316,931,742.66, 437,204,835.45 and 206,987,811.78

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Solution

The fourth proportional to 316,931,742.66, 437,204,835.45 and 206,987,811.78 is: 285,538,051.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,931,742.66 : 437,204,835.45 = 206,987,811.78 : x
  2. Step 2: Convert to fraction form
    316,931,742.66/437,204,835.45 = 206,987,811.78/x
  3. Step 3: Cross multiply
    316,931,742.66x = 437,204,835.45 × 206,987,811.78
  4. Step 4: Simplify right side
    316,931,742.66x = 90,496,072,189,430,464
  5. Step 5: Solve for x
    x = 90,496,072,189,430,464/316,931,742.66
  6. Step 6: Final answer
    x = 285,538,051.28

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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.