Home / 519,282,709.20-778,924,063.80-155,777,065.20

Finding the Fourth Proportional to 519,282,709.20, 778,924,063.80 and 155,777,065.20

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Solution

The fourth proportional to 519,282,709.20, 778,924,063.80 and 155,777,065.20 is: 233,665,597.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,282,709.20 : 778,924,063.80 = 155,777,065.20 : x
  2. Step 2: Convert to fraction form
    519,282,709.20/778,924,063.80 = 155,777,065.20/x
  3. Step 3: Cross multiply
    519,282,709.20x = 778,924,063.80 × 155,777,065.20
  4. Step 4: Simplify right side
    519,282,709.20x = 121,338,504,672,421,536
  5. Step 5: Solve for x
    x = 121,338,504,672,421,536/519,282,709.20
  6. Step 6: Final answer
    x = 233,665,597.80

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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.