Home / 30,805,420.13-42,509,863.15-16,864,102.56

Finding the Fourth Proportional to 30,805,420.13, 42,509,863.15 and 16,864,102.56

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Solution

The fourth proportional to 30,805,420.13, 42,509,863.15 and 16,864,102.56 is: 23,271,576.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,805,420.13 : 42,509,863.15 = 16,864,102.56 : x
  2. Step 2: Convert to fraction form
    30,805,420.13/42,509,863.15 = 16,864,102.56/x
  3. Step 3: Cross multiply
    30,805,420.13x = 42,509,863.15 × 16,864,102.56
  4. Step 4: Simplify right side
    30,805,420.13x = 716,890,691,973,164.62
  5. Step 5: Solve for x
    x = 716,890,691,973,164.62/30,805,420.13
  6. Step 6: Final answer
    x = 23,271,576.53

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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.