Home / 20,858,019.60-31,287,029.40-14,487,920.40

Finding the Fourth Proportional to 20,858,019.60, 31,287,029.40 and 14,487,920.40

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Solution

The fourth proportional to 20,858,019.60, 31,287,029.40 and 14,487,920.40 is: 21,731,880.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,858,019.60 : 31,287,029.40 = 14,487,920.40 : x
  2. Step 2: Convert to fraction form
    20,858,019.60/31,287,029.40 = 14,487,920.40/x
  3. Step 3: Cross multiply
    20,858,019.60x = 31,287,029.40 × 14,487,920.40
  4. Step 4: Simplify right side
    20,858,019.60x = 453,283,991,499,659.75
  5. Step 5: Solve for x
    x = 453,283,991,499,659.75/20,858,019.60
  6. Step 6: Final answer
    x = 21,731,880.60

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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.