Home / 18,389,292.60-25,377,800.94-10,129,953.72

Finding the Fourth Proportional to 18,389,292.60, 25,377,800.94 and 10,129,953.72

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Solution

The fourth proportional to 18,389,292.60, 25,377,800.94 and 10,129,953.72 is: 13,979,654.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,389,292.60 : 25,377,800.94 = 10,129,953.72 : x
  2. Step 2: Convert to fraction form
    18,389,292.60/25,377,800.94 = 10,129,953.72/x
  3. Step 3: Cross multiply
    18,389,292.60x = 25,377,800.94 × 10,129,953.72
  4. Step 4: Simplify right side
    18,389,292.60x = 257,075,949,037,572.53
  5. Step 5: Solve for x
    x = 257,075,949,037,572.53/18,389,292.60
  6. Step 6: Final answer
    x = 13,979,654.06

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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.