Home / 18,539,235.60-27,808,853.40-12,799,672.80

Finding the Fourth Proportional to 18,539,235.60, 27,808,853.40 and 12,799,672.80

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Solution

The fourth proportional to 18,539,235.60, 27,808,853.40 and 12,799,672.80 is: 19,199,509.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,539,235.60 : 27,808,853.40 = 12,799,672.80 : x
  2. Step 2: Convert to fraction form
    18,539,235.60/27,808,853.40 = 12,799,672.80/x
  3. Step 3: Cross multiply
    18,539,235.60x = 27,808,853.40 × 12,799,672.80
  4. Step 4: Simplify right side
    18,539,235.60x = 355,944,224,463,167.50
  5. Step 5: Solve for x
    x = 355,944,224,463,167.50/18,539,235.60
  6. Step 6: Final answer
    x = 19,199,509.20

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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.