Home / 21,484,828.20-32,160,887.10-12,482,639.40

Finding the Fourth Proportional to 21,484,828.20, 32,160,887.10 and 12,482,639.40

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Solution

The fourth proportional to 21,484,828.20, 32,160,887.10 and 12,482,639.40 is: 18,685,406.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,484,828.20 : 32,160,887.10 = 12,482,639.40 : x
  2. Step 2: Convert to fraction form
    21,484,828.20/32,160,887.10 = 12,482,639.40/x
  3. Step 3: Cross multiply
    21,484,828.20x = 32,160,887.10 × 12,482,639.40
  4. Step 4: Simplify right side
    21,484,828.20x = 401,452,756,453,411.75
  5. Step 5: Solve for x
    x = 401,452,756,453,411.75/21,484,828.20
  6. Step 6: Final answer
    x = 18,685,406.87

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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.