Home / 20,028,886.20-30,043,329.30-13,208,726.70

Finding the Fourth Proportional to 20,028,886.20, 30,043,329.30 and 13,208,726.70

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Solution

The fourth proportional to 20,028,886.20, 30,043,329.30 and 13,208,726.70 is: 19,813,090.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,028,886.20 : 30,043,329.30 = 13,208,726.70 : x
  2. Step 2: Convert to fraction form
    20,028,886.20/30,043,329.30 = 13,208,726.70/x
  3. Step 3: Cross multiply
    20,028,886.20x = 30,043,329.30 × 13,208,726.70
  4. Step 4: Simplify right side
    20,028,886.20x = 396,834,125,881,802.31
  5. Step 5: Solve for x
    x = 396,834,125,881,802.31/20,028,886.20
  6. Step 6: Final answer
    x = 19,813,090.05

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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.