Home / 756,142,759.60-1,131,946,657.80-449,276,916.40

Finding the Fourth Proportional to 756,142,759.60, 1,131,946,657.80 and 449,276,916.40

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Solution

The fourth proportional to 756,142,759.60, 1,131,946,657.80 and 449,276,916.40 is: 672,568,106.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,142,759.60 : 1,131,946,657.80 = 449,276,916.40 : x
  2. Step 2: Convert to fraction form
    756,142,759.60/1,131,946,657.80 = 449,276,916.40/x
  3. Step 3: Cross multiply
    756,142,759.60x = 1,131,946,657.80 × 449,276,916.40
  4. Step 4: Simplify right side
    756,142,759.60x = 508,557,503,945,669,952
  5. Step 5: Solve for x
    x = 508,557,503,945,669,952/756,142,759.60
  6. Step 6: Final answer
    x = 672,568,106.34

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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.