Home / 30,222,001.20-45,333,001.80-21,781,930.80

Finding the Fourth Proportional to 30,222,001.20, 45,333,001.80 and 21,781,930.80

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Solution

The fourth proportional to 30,222,001.20, 45,333,001.80 and 21,781,930.80 is: 32,672,896.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,222,001.20 : 45,333,001.80 = 21,781,930.80 : x
  2. Step 2: Convert to fraction form
    30,222,001.20/45,333,001.80 = 21,781,930.80/x
  3. Step 3: Cross multiply
    30,222,001.20x = 45,333,001.80 × 21,781,930.80
  4. Step 4: Simplify right side
    30,222,001.20x = 987,440,308,163,875.38
  5. Step 5: Solve for x
    x = 987,440,308,163,875.38/30,222,001.20
  6. Step 6: Final answer
    x = 32,672,896.20

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1.5x scale

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.