Home / 21,484,911.20-32,161,011.60-12,482,722.40

Finding the Fourth Proportional to 21,484,911.20, 32,161,011.60 and 12,482,722.40

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Solution

The fourth proportional to 21,484,911.20, 32,161,011.60 and 12,482,722.40 is: 18,685,531.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,484,911.20 : 32,161,011.60 = 12,482,722.40 : x
  2. Step 2: Convert to fraction form
    21,484,911.20/32,161,011.60 = 12,482,722.40/x
  3. Step 3: Cross multiply
    21,484,911.20x = 32,161,011.60 × 12,482,722.40
  4. Step 4: Simplify right side
    21,484,911.20x = 401,456,979,905,979.88
  5. Step 5: Solve for x
    x = 401,456,979,905,979.88/21,484,911.20
  6. Step 6: Final answer
    x = 18,685,531.26

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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.