Home / 20,966,671.60-28,935,197.76-12,596,601.40

Finding the Fourth Proportional to 20,966,671.60, 28,935,197.76 and 12,596,601.40

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Solution

The fourth proportional to 20,966,671.60, 28,935,197.76 and 12,596,601.40 is: 17,384,025.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,966,671.60 : 28,935,197.76 = 12,596,601.40 : x
  2. Step 2: Convert to fraction form
    20,966,671.60/28,935,197.76 = 12,596,601.40/x
  3. Step 3: Cross multiply
    20,966,671.60x = 28,935,197.76 × 12,596,601.40
  4. Step 4: Simplify right side
    20,966,671.60x = 364,485,152,612,892.88
  5. Step 5: Solve for x
    x = 364,485,152,612,892.88/20,966,671.60
  6. Step 6: Final answer
    x = 17,384,025.45

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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.