Home / 38,620,798.89-53,294,490.05-21,216,770.34

Finding the Fourth Proportional to 38,620,798.89, 53,294,490.05 and 21,216,770.34

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Solution

The fourth proportional to 38,620,798.89, 53,294,490.05 and 21,216,770.34 is: 29,277,927.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,620,798.89 : 53,294,490.05 = 21,216,770.34 : x
  2. Step 2: Convert to fraction form
    38,620,798.89/53,294,490.05 = 21,216,770.34/x
  3. Step 3: Cross multiply
    38,620,798.89x = 53,294,490.05 × 21,216,770.34
  4. Step 4: Simplify right side
    38,620,798.89x = 1,130,736,955,672,181.25
  5. Step 5: Solve for x
    x = 1,130,736,955,672,181.25/38,620,798.89
  6. Step 6: Final answer
    x = 29,277,927.65

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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.