Home / 13,827,007.70-20,740,511.55-12,457,070.90

Finding the Fourth Proportional to 13,827,007.70, 20,740,511.55 and 12,457,070.90

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Solution

The fourth proportional to 13,827,007.70, 20,740,511.55 and 12,457,070.90 is: 18,685,606.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,827,007.70 : 20,740,511.55 = 12,457,070.90 : x
  2. Step 2: Convert to fraction form
    13,827,007.70/20,740,511.55 = 12,457,070.90/x
  3. Step 3: Cross multiply
    13,827,007.70x = 20,740,511.55 × 12,457,070.90
  4. Step 4: Simplify right side
    13,827,007.70x = 258,366,022,880,618.91
  5. Step 5: Solve for x
    x = 258,366,022,880,618.91/13,827,007.70
  6. Step 6: Final answer
    x = 18,685,606.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.