Home / 1,209,927,502.20-1,815,115,202.10-392,066,484.60

Finding the Fourth Proportional to 1,209,927,502.20, 1,815,115,202.10 and 392,066,484.60

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Solution

The fourth proportional to 1,209,927,502.20, 1,815,115,202.10 and 392,066,484.60 is: 588,172,295.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,927,502.20 : 1,815,115,202.10 = 392,066,484.60 : x
  2. Step 2: Convert to fraction form
    1,209,927,502.20/1,815,115,202.10 = 392,066,484.60/x
  3. Step 3: Cross multiply
    1,209,927,502.20x = 1,815,115,202.10 × 392,066,484.60
  4. Step 4: Simplify right side
    1,209,927,502.20x = 711,645,836,431,365,504
  5. Step 5: Solve for x
    x = 711,645,836,431,365,504/1,209,927,502.20
  6. Step 6: Final answer
    x = 588,172,295.56

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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.