Home / 1,475,139,697.20-2,212,821,520.20-439,919,780.40

Finding the Fourth Proportional to 1,475,139,697.20, 2,212,821,520.20 and 439,919,780.40

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Solution

The fourth proportional to 1,475,139,697.20, 2,212,821,520.20 and 439,919,780.40 is: 659,913,063.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,475,139,697.20 : 2,212,821,520.20 = 439,919,780.40 : x
  2. Step 2: Convert to fraction form
    1,475,139,697.20/2,212,821,520.20 = 439,919,780.40/x
  3. Step 3: Cross multiply
    1,475,139,697.20x = 2,212,821,520.20 × 439,919,780.40
  4. Step 4: Simplify right side
    1,475,139,697.20x = 973,463,957,230,777,984
  5. Step 5: Solve for x
    x = 973,463,957,230,777,984/1,475,139,697.20
  6. Step 6: Final answer
    x = 659,913,063.88

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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.