Home / 139,711,631,328.60-209,567,446,992.90-51,361,478,266.20

Finding the Fourth Proportional to 139,711,631,328.60, 209,567,446,992.90 and 51,361,478,266.20

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Solution

The fourth proportional to 139,711,631,328.60, 209,567,446,992.90 and 51,361,478,266.20 is: 77,042,217,399.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,711,631,328.60 : 209,567,446,992.90 = 51,361,478,266.20 : x
  2. Step 2: Convert to fraction form
    139,711,631,328.60/209,567,446,992.90 = 51,361,478,266.20/x
  3. Step 3: Cross multiply
    139,711,631,328.60x = 209,567,446,992.90 × 51,361,478,266.20
  4. Step 4: Simplify right side
    139,711,631,328.60x = 10,763,693,874,028,853,854,208
  5. Step 5: Solve for x
    x = 10,763,693,874,028,853,854,208/139,711,631,328.60
  6. Step 6: Final answer
    x = 77,042,217,399.30

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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.