Home / 20,862,674.39-28,792,259.10-11,573,237.51

Finding the Fourth Proportional to 20,862,674.39, 28,792,259.10 and 11,573,237.51

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Solution

The fourth proportional to 20,862,674.39, 28,792,259.10 and 11,573,237.51 is: 15,972,048.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,862,674.39 : 28,792,259.10 = 11,573,237.51 : x
  2. Step 2: Convert to fraction form
    20,862,674.39/28,792,259.10 = 11,573,237.51/x
  3. Step 3: Cross multiply
    20,862,674.39x = 28,792,259.10 × 11,573,237.51
  4. Step 4: Simplify right side
    20,862,674.39x = 333,219,653,013,758.88
  5. Step 5: Solve for x
    x = 333,219,653,013,758.88/20,862,674.39
  6. Step 6: Final answer
    x = 15,972,048.78

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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.