Home / 21,678,928.64-32,490,045.12-8,884,453.76

Finding the Fourth Proportional to 21,678,928.64, 32,490,045.12 and 8,884,453.76

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Solution

The fourth proportional to 21,678,928.64, 32,490,045.12 and 8,884,453.76 is: 13,315,063.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,678,928.64 : 32,490,045.12 = 8,884,453.76 : x
  2. Step 2: Convert to fraction form
    21,678,928.64/32,490,045.12 = 8,884,453.76/x
  3. Step 3: Cross multiply
    21,678,928.64x = 32,490,045.12 × 8,884,453.76
  4. Step 4: Simplify right side
    21,678,928.64x = 288,656,303,528,953.62
  5. Step 5: Solve for x
    x = 288,656,303,528,953.62/21,678,928.64
  6. Step 6: Final answer
    x = 13,315,063.13

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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.