Home / 339,606,000.40-509,409,000.60-145,484,381.20

Finding the Fourth Proportional to 339,606,000.40, 509,409,000.60 and 145,484,381.20

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Solution

The fourth proportional to 339,606,000.40, 509,409,000.60 and 145,484,381.20 is: 218,226,571.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,606,000.40 : 509,409,000.60 = 145,484,381.20 : x
  2. Step 2: Convert to fraction form
    339,606,000.40/509,409,000.60 = 145,484,381.20/x
  3. Step 3: Cross multiply
    339,606,000.40x = 509,409,000.60 × 145,484,381.20
  4. Step 4: Simplify right side
    339,606,000.40x = 74,111,053,230,001,424
  5. Step 5: Solve for x
    x = 74,111,053,230,001,424/339,606,000.40
  6. Step 6: Final answer
    x = 218,226,571.80

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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.