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Finding the Fourth Proportional to 489,216,653.80, 733,824,980.70 and 451,803,207.40

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Solution

The fourth proportional to 489,216,653.80, 733,824,980.70 and 451,803,207.40 is: 677,704,811.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,216,653.80 : 733,824,980.70 = 451,803,207.40 : x
  2. Step 2: Convert to fraction form
    489,216,653.80/733,824,980.70 = 451,803,207.40/x
  3. Step 3: Cross multiply
    489,216,653.80x = 733,824,980.70 × 451,803,207.40
  4. Step 4: Simplify right side
    489,216,653.80x = 331,544,479,950,503,104
  5. Step 5: Solve for x
    x = 331,544,479,950,503,104/489,216,653.80
  6. Step 6: Final answer
    x = 677,704,811.10

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1.5x scale

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.