Home / 1,279,683,531.78-1,919,429,565.30-461,795,803.62

Finding the Fourth Proportional to 1,279,683,531.78, 1,919,429,565.30 and 461,795,803.62

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Solution

The fourth proportional to 1,279,683,531.78, 1,919,429,565.30 and 461,795,803.62 is: 692,659,158.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,683,531.78 : 1,919,429,565.30 = 461,795,803.62 : x
  2. Step 2: Convert to fraction form
    1,279,683,531.78/1,919,429,565.30 = 461,795,803.62/x
  3. Step 3: Cross multiply
    1,279,683,531.78x = 1,919,429,565.30 × 461,795,803.62
  4. Step 4: Simplify right side
    1,279,683,531.78x = 886,384,518,599,700,736
  5. Step 5: Solve for x
    x = 886,384,518,599,700,736/1,279,683,531.78
  6. Step 6: Final answer
    x = 692,659,158.76

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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.