Home / 863,642,848,791.25-1,191,864,595,536.40-478,267,194,642.66

Finding the Fourth Proportional to 863,642,848,791.25, 1,191,864,595,536.40 and 478,267,194,642.66

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Solution

The fourth proportional to 863,642,848,791.25, 1,191,864,595,536.40 and 478,267,194,642.66 is: 660,029,475,493.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,642,848,791.25 : 1,191,864,595,536.40 = 478,267,194,642.66 : x
  2. Step 2: Convert to fraction form
    863,642,848,791.25/1,191,864,595,536.40 = 478,267,194,642.66/x
  3. Step 3: Cross multiply
    863,642,848,791.25x = 1,191,864,595,536.40 × 478,267,194,642.66
  4. Step 4: Simplify right side
    863,642,848,791.25x = 570,029,736,501,102,604,451,840
  5. Step 5: Solve for x
    x = 570,029,736,501,102,604,451,840/863,642,848,791.25
  6. Step 6: Final answer
    x = 660,029,475,493.16

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.