Home / 20,966,679.60-28,935,208.80-12,596,609.40

Finding the Fourth Proportional to 20,966,679.60, 28,935,208.80 and 12,596,609.40

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Solution

The fourth proportional to 20,966,679.60, 28,935,208.80 and 12,596,609.40 is: 17,384,036.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,966,679.60 : 28,935,208.80 = 12,596,609.40 : x
  2. Step 2: Convert to fraction form
    20,966,679.60/28,935,208.80 = 12,596,609.40/x
  3. Step 3: Cross multiply
    20,966,679.60x = 28,935,208.80 × 12,596,609.40
  4. Step 4: Simplify right side
    20,966,679.60x = 364,485,523,161,042.75
  5. Step 5: Solve for x
    x = 364,485,523,161,042.75/20,966,679.60
  6. Step 6: Final answer
    x = 17,384,036.49

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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.