Home / 319,518,813.71-440,861,079.56-194,067,515.55

Finding the Fourth Proportional to 319,518,813.71, 440,861,079.56 and 194,067,515.55

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Solution

The fourth proportional to 319,518,813.71, 440,861,079.56 and 194,067,515.55 is: 267,767,689.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,518,813.71 : 440,861,079.56 = 194,067,515.55 : x
  2. Step 2: Convert to fraction form
    319,518,813.71/440,861,079.56 = 194,067,515.55/x
  3. Step 3: Cross multiply
    319,518,813.71x = 440,861,079.56 × 194,067,515.55
  4. Step 4: Simplify right side
    319,518,813.71x = 85,556,814,415,492,608
  5. Step 5: Solve for x
    x = 85,556,814,415,492,608/319,518,813.71
  6. Step 6: Final answer
    x = 267,767,689.24

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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.