Home / 512,487,030.60-768,861,634.86-148,981,386.60

Finding the Fourth Proportional to 512,487,030.60, 768,861,634.86 and 148,981,386.60

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Solution

The fourth proportional to 512,487,030.60, 768,861,634.86 and 148,981,386.60 is: 223,510,187.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,487,030.60 : 768,861,634.86 = 148,981,386.60 : x
  2. Step 2: Convert to fraction form
    512,487,030.60/768,861,634.86 = 148,981,386.60/x
  3. Step 3: Cross multiply
    512,487,030.60x = 768,861,634.86 × 148,981,386.60
  4. Step 4: Simplify right side
    512,487,030.60x = 114,546,072,464,985,696
  5. Step 5: Solve for x
    x = 114,546,072,464,985,696/512,487,030.60
  6. Step 6: Final answer
    x = 223,510,187.82

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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.