Home / 30,222,071.70-45,333,107.55-21,782,001.30

Finding the Fourth Proportional to 30,222,071.70, 45,333,107.55 and 21,782,001.30

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Solution

The fourth proportional to 30,222,071.70, 45,333,107.55 and 21,782,001.30 is: 32,673,001.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,222,071.70 : 45,333,107.55 = 21,782,001.30 : x
  2. Step 2: Convert to fraction form
    30,222,071.70/45,333,107.55 = 21,782,001.30/x
  3. Step 3: Cross multiply
    30,222,071.70x = 45,333,107.55 × 21,782,001.30
  4. Step 4: Simplify right side
    30,222,071.70x = 987,445,807,587,139.75
  5. Step 5: Solve for x
    x = 987,445,807,587,139.75/30,222,071.70
  6. Step 6: Final answer
    x = 32,673,001.95

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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.