Home / 21,220,518.84-31,827,580.28-13,597,434.24

Finding the Fourth Proportional to 21,220,518.84, 31,827,580.28 and 13,597,434.24

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Solution

The fourth proportional to 21,220,518.84, 31,827,580.28 and 13,597,434.24 is: 20,394,102.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,220,518.84 : 31,827,580.28 = 13,597,434.24 : x
  2. Step 2: Convert to fraction form
    21,220,518.84/31,827,580.28 = 13,597,434.24/x
  3. Step 3: Cross multiply
    21,220,518.84x = 31,827,580.28 × 13,597,434.24
  4. Step 4: Simplify right side
    21,220,518.84x = 432,773,429,807,633.62
  5. Step 5: Solve for x
    x = 432,773,429,807,633.62/21,220,518.84
  6. Step 6: Final answer
    x = 20,394,102.19

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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.