Home / 646,793,932.80-970,190,899.20-186,747,110.40

Finding the Fourth Proportional to 646,793,932.80, 970,190,899.20 and 186,747,110.40

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Solution

The fourth proportional to 646,793,932.80, 970,190,899.20 and 186,747,110.40 is: 280,120,665.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,793,932.80 : 970,190,899.20 = 186,747,110.40 : x
  2. Step 2: Convert to fraction form
    646,793,932.80/970,190,899.20 = 186,747,110.40/x
  3. Step 3: Cross multiply
    646,793,932.80x = 970,190,899.20 × 186,747,110.40
  4. Step 4: Simplify right side
    646,793,932.80x = 181,180,346,961,977,696
  5. Step 5: Solve for x
    x = 181,180,346,961,977,696/646,793,932.80
  6. Step 6: Final answer
    x = 280,120,665.60

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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.