Home / 21,063,272.20-31,594,908.30-12,949,939.60

Finding the Fourth Proportional to 21,063,272.20, 31,594,908.30 and 12,949,939.60

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Solution

The fourth proportional to 21,063,272.20, 31,594,908.30 and 12,949,939.60 is: 19,424,909.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,063,272.20 : 31,594,908.30 = 12,949,939.60 : x
  2. Step 2: Convert to fraction form
    21,063,272.20/31,594,908.30 = 12,949,939.60/x
  3. Step 3: Cross multiply
    21,063,272.20x = 31,594,908.30 × 12,949,939.60
  4. Step 4: Simplify right side
    21,063,272.20x = 409,152,154,152,538.69
  5. Step 5: Solve for x
    x = 409,152,154,152,538.69/21,063,272.20
  6. Step 6: Final answer
    x = 19,424,909.40

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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.