Home / 18,405,123.17-25,400,206.36-10,145,166.86

Finding the Fourth Proportional to 18,405,123.17, 25,400,206.36 and 10,145,166.86

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Solution

The fourth proportional to 18,405,123.17, 25,400,206.36 and 10,145,166.86 is: 14,000,956.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,405,123.17 : 25,400,206.36 = 10,145,166.86 : x
  2. Step 2: Convert to fraction form
    18,405,123.17/25,400,206.36 = 10,145,166.86/x
  3. Step 3: Cross multiply
    18,405,123.17x = 25,400,206.36 × 10,145,166.86
  4. Step 4: Simplify right side
    18,405,123.17x = 257,689,331,714,841.88
  5. Step 5: Solve for x
    x = 257,689,331,714,841.88/18,405,123.17
  6. Step 6: Final answer
    x = 14,000,956.65

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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.