Home / 19,152,167.80-28,728,251.70-11,971,809.40

Finding the Fourth Proportional to 19,152,167.80, 28,728,251.70 and 11,971,809.40

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Solution

The fourth proportional to 19,152,167.80, 28,728,251.70 and 11,971,809.40 is: 17,957,714.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,152,167.80 : 28,728,251.70 = 11,971,809.40 : x
  2. Step 2: Convert to fraction form
    19,152,167.80/28,728,251.70 = 11,971,809.40/x
  3. Step 3: Cross multiply
    19,152,167.80x = 28,728,251.70 × 11,971,809.40
  4. Step 4: Simplify right side
    19,152,167.80x = 343,929,153,747,626
  5. Step 5: Solve for x
    x = 343,929,153,747,626/19,152,167.80
  6. Step 6: Final answer
    x = 17,957,714.10

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1.5x scale

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.