Home / 25,608,107.20-38,318,848.80-18,889,643.20

Finding the Fourth Proportional to 25,608,107.20, 38,318,848.80 and 18,889,643.20

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Solution

The fourth proportional to 25,608,107.20, 38,318,848.80 and 18,889,643.20 is: 28,265,633.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,608,107.20 : 38,318,848.80 = 18,889,643.20 : x
  2. Step 2: Convert to fraction form
    25,608,107.20/38,318,848.80 = 18,889,643.20/x
  3. Step 3: Cross multiply
    25,608,107.20x = 38,318,848.80 × 18,889,643.20
  4. Step 4: Simplify right side
    25,608,107.20x = 723,829,381,666,748.12
  5. Step 5: Solve for x
    x = 723,829,381,666,748.12/25,608,107.20
  6. Step 6: Final answer
    x = 28,265,633.85

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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.