Home / 20,628,901.59-28,468,652.41-12,370,308.45

Finding the Fourth Proportional to 20,628,901.59, 28,468,652.41 and 12,370,308.45

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Solution

The fourth proportional to 20,628,901.59, 28,468,652.41 and 12,370,308.45 is: 17,071,486.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,628,901.59 : 28,468,652.41 = 12,370,308.45 : x
  2. Step 2: Convert to fraction form
    20,628,901.59/28,468,652.41 = 12,370,308.45/x
  3. Step 3: Cross multiply
    20,628,901.59x = 28,468,652.41 × 12,370,308.45
  4. Step 4: Simplify right side
    20,628,901.59x = 352,166,011,467,535.88
  5. Step 5: Solve for x
    x = 352,166,011,467,535.88/20,628,901.59
  6. Step 6: Final answer
    x = 17,071,486.33

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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.