Home / 441,479,717,019.85-609,355,364,940.63-287,539,002,931.09

Finding the Fourth Proportional to 441,479,717,019.85, 609,355,364,940.63 and 287,539,002,931.09

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Solution

The fourth proportional to 441,479,717,019.85, 609,355,364,940.63 and 287,539,002,931.09 is: 396,877,653,289.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,479,717,019.85 : 609,355,364,940.63 = 287,539,002,931.09 : x
  2. Step 2: Convert to fraction form
    441,479,717,019.85/609,355,364,940.63 = 287,539,002,931.09/x
  3. Step 3: Cross multiply
    441,479,717,019.85x = 609,355,364,940.63 × 287,539,002,931.09
  4. Step 4: Simplify right side
    441,479,717,019.85x = 175,213,434,065,739,237,556,224
  5. Step 5: Solve for x
    x = 175,213,434,065,739,237,556,224/441,479,717,019.85
  6. Step 6: Final answer
    x = 396,877,653,289.47

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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.