Home / 12,457,501.80-18,686,252.70-12,205,559.40

Finding the Fourth Proportional to 12,457,501.80, 18,686,252.70 and 12,205,559.40

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Solution

The fourth proportional to 12,457,501.80, 18,686,252.70 and 12,205,559.40 is: 18,308,339.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,457,501.80 : 18,686,252.70 = 12,205,559.40 : x
  2. Step 2: Convert to fraction form
    12,457,501.80/18,686,252.70 = 12,205,559.40/x
  3. Step 3: Cross multiply
    12,457,501.80x = 18,686,252.70 × 12,205,559.40
  4. Step 4: Simplify right side
    12,457,501.80x = 228,076,167,293,260.38
  5. Step 5: Solve for x
    x = 228,076,167,293,260.38/12,457,501.80
  6. Step 6: Final answer
    x = 18,308,339.10

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Similar ratio
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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.