Home / 15,781,465.80-21,793,462.97-14,921,698.89

Finding the Fourth Proportional to 15,781,465.80, 21,793,462.97 and 14,921,698.89

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Solution

The fourth proportional to 15,781,465.80, 21,793,462.97 and 14,921,698.89 is: 20,606,165.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,781,465.80 : 21,793,462.97 = 14,921,698.89 : x
  2. Step 2: Convert to fraction form
    15,781,465.80/21,793,462.97 = 14,921,698.89/x
  3. Step 3: Cross multiply
    15,781,465.80x = 21,793,462.97 × 14,921,698.89
  4. Step 4: Simplify right side
    15,781,465.80x = 325,195,492,134,096.62
  5. Step 5: Solve for x
    x = 325,195,492,134,096.62/15,781,465.80
  6. Step 6: Final answer
    x = 20,606,165.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.