Home / 257,916,830.60-386,875,245.90-243,136,209.80

Finding the Fourth Proportional to 257,916,830.60, 386,875,245.90 and 243,136,209.80

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Solution

The fourth proportional to 257,916,830.60, 386,875,245.90 and 243,136,209.80 is: 364,704,314.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,916,830.60 : 386,875,245.90 = 243,136,209.80 : x
  2. Step 2: Convert to fraction form
    257,916,830.60/386,875,245.90 = 243,136,209.80/x
  3. Step 3: Cross multiply
    257,916,830.60x = 386,875,245.90 × 243,136,209.80
  4. Step 4: Simplify right side
    257,916,830.60x = 94,063,380,953,568,992
  5. Step 5: Solve for x
    x = 94,063,380,953,568,992/257,916,830.60
  6. Step 6: Final answer
    x = 364,704,314.70

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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.