Home / 189,644,312.80-284,466,469.20-124,170,781.60

Finding the Fourth Proportional to 189,644,312.80, 284,466,469.20 and 124,170,781.60

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Solution

The fourth proportional to 189,644,312.80, 284,466,469.20 and 124,170,781.60 is: 186,256,172.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,644,312.80 : 284,466,469.20 = 124,170,781.60 : x
  2. Step 2: Convert to fraction form
    189,644,312.80/284,466,469.20 = 124,170,781.60/x
  3. Step 3: Cross multiply
    189,644,312.80x = 284,466,469.20 × 124,170,781.60
  4. Step 4: Simplify right side
    189,644,312.80x = 35,322,423,819,556,324
  5. Step 5: Solve for x
    x = 35,322,423,819,556,324/189,644,312.80
  6. Step 6: Final answer
    x = 186,256,172.40

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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.