Home / 14,678,690-20,255,406.99-8,484,138

Finding the Fourth Proportional to 14,678,690, 20,255,406.99 and 8,484,138

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Solution

The fourth proportional to 14,678,690, 20,255,406.99 and 8,484,138 is: 11,707,425.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,678,690 : 20,255,406.99 = 8,484,138 : x
  2. Step 2: Convert to fraction form
    14,678,690/20,255,406.99 = 8,484,138/x
  3. Step 3: Cross multiply
    14,678,690x = 20,255,406.99 × 8,484,138
  4. Step 4: Simplify right side
    14,678,690x = 171,849,668,106,903.94
  5. Step 5: Solve for x
    x = 171,849,668,106,903.94/14,678,690
  6. Step 6: Final answer
    x = 11,707,425.40

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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.