Home / 12,636,032.40-18,954,048.60-8,381,005.20

Finding the Fourth Proportional to 12,636,032.40, 18,954,048.60 and 8,381,005.20

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Solution

The fourth proportional to 12,636,032.40, 18,954,048.60 and 8,381,005.20 is: 12,571,507.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,636,032.40 : 18,954,048.60 = 8,381,005.20 : x
  2. Step 2: Convert to fraction form
    12,636,032.40/18,954,048.60 = 8,381,005.20/x
  3. Step 3: Cross multiply
    12,636,032.40x = 18,954,048.60 × 8,381,005.20
  4. Step 4: Simplify right side
    12,636,032.40x = 158,853,979,877,652.75
  5. Step 5: Solve for x
    x = 158,853,979,877,652.75/12,636,032.40
  6. Step 6: Final answer
    x = 12,571,507.80

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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.