Home / 18,709,120-25,818,585.60-10,124,416

Finding the Fourth Proportional to 18,709,120, 25,818,585.60 and 10,124,416

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Solution

The fourth proportional to 18,709,120, 25,818,585.60 and 10,124,416 is: 13,971,694.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,709,120 : 25,818,585.60 = 10,124,416 : x
  2. Step 2: Convert to fraction form
    18,709,120/25,818,585.60 = 10,124,416/x
  3. Step 3: Cross multiply
    18,709,120x = 25,818,585.60 × 10,124,416
  4. Step 4: Simplify right side
    18,709,120x = 261,398,101,146,009.62
  5. Step 5: Solve for x
    x = 261,398,101,146,009.62/18,709,120
  6. Step 6: Final answer
    x = 13,971,694.08

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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.