Home / 14,500,018.15-20,005,128.12-8,219,872.18

Finding the Fourth Proportional to 14,500,018.15, 20,005,128.12 and 8,219,872.18

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Solution

The fourth proportional to 14,500,018.15, 20,005,128.12 and 8,219,872.18 is: 11,340,647.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,500,018.15 : 20,005,128.12 = 8,219,872.18 : x
  2. Step 2: Convert to fraction form
    14,500,018.15/20,005,128.12 = 8,219,872.18/x
  3. Step 3: Cross multiply
    14,500,018.15x = 20,005,128.12 × 8,219,872.18
  4. Step 4: Simplify right side
    14,500,018.15x = 164,439,596,090,923.72
  5. Step 5: Solve for x
    x = 164,439,596,090,923.72/14,500,018.15
  6. Step 6: Final answer
    x = 11,340,647.60

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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.