Home / 20,577,934.60-28,395,503.70-11,878,909.74

Finding the Fourth Proportional to 20,577,934.60, 28,395,503.70 and 11,878,909.74

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Solution

The fourth proportional to 20,577,934.60, 28,395,503.70 and 11,878,909.74 is: 16,391,714.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,577,934.60 : 28,395,503.70 = 11,878,909.74 : x
  2. Step 2: Convert to fraction form
    20,577,934.60/28,395,503.70 = 11,878,909.74/x
  3. Step 3: Cross multiply
    20,577,934.60x = 28,395,503.70 × 11,878,909.74
  4. Step 4: Simplify right side
    20,577,934.60x = 337,307,625,474,136.06
  5. Step 5: Solve for x
    x = 337,307,625,474,136.06/20,577,934.60
  6. Step 6: Final answer
    x = 16,391,714.33

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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.