Home / 18,111,521.57-25,007,928.80-13,918,564.94

Finding the Fourth Proportional to 18,111,521.57, 25,007,928.80 and 13,918,564.94

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Solution

The fourth proportional to 18,111,521.57, 25,007,928.80 and 13,918,564.94 is: 19,218,400.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,111,521.57 : 25,007,928.80 = 13,918,564.94 : x
  2. Step 2: Convert to fraction form
    18,111,521.57/25,007,928.80 = 13,918,564.94/x
  3. Step 3: Cross multiply
    18,111,521.57x = 25,007,928.80 × 13,918,564.94
  4. Step 4: Simplify right side
    18,111,521.57x = 348,074,480,823,063.81
  5. Step 5: Solve for x
    x = 348,074,480,823,063.81/18,111,521.57
  6. Step 6: Final answer
    x = 19,218,400.82

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1.5x scale

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.