Home / 38,420,687.84-53,020,969.88-21,017,033.24

Finding the Fourth Proportional to 38,420,687.84, 53,020,969.88 and 21,017,033.24

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Solution

The fourth proportional to 38,420,687.84, 53,020,969.88 and 21,017,033.24 is: 29,003,735.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,420,687.84 : 53,020,969.88 = 21,017,033.24 : x
  2. Step 2: Convert to fraction form
    38,420,687.84/53,020,969.88 = 21,017,033.24/x
  3. Step 3: Cross multiply
    38,420,687.84x = 53,020,969.88 × 21,017,033.24
  4. Step 4: Simplify right side
    38,420,687.84x = 1,114,343,486,014,808.75
  5. Step 5: Solve for x
    x = 1,114,343,486,014,808.75/38,420,687.84
  6. Step 6: Final answer
    x = 29,003,735.98

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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.