Home / 663,554,611.20-995,331,916.80-455,730,124.80

Finding the Fourth Proportional to 663,554,611.20, 995,331,916.80 and 455,730,124.80

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Solution

The fourth proportional to 663,554,611.20, 995,331,916.80 and 455,730,124.80 is: 683,595,187.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,554,611.20 : 995,331,916.80 = 455,730,124.80 : x
  2. Step 2: Convert to fraction form
    663,554,611.20/995,331,916.80 = 455,730,124.80/x
  3. Step 3: Cross multiply
    663,554,611.20x = 995,331,916.80 × 455,730,124.80
  4. Step 4: Simplify right side
    663,554,611.20x = 453,602,738,660,687,232
  5. Step 5: Solve for x
    x = 453,602,738,660,687,232/663,554,611.20
  6. Step 6: Final answer
    x = 683,595,187.20

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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.