Home / 18,897,719.70-28,346,579.55-13,124,817.30

Finding the Fourth Proportional to 18,897,719.70, 28,346,579.55 and 13,124,817.30

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Solution

The fourth proportional to 18,897,719.70, 28,346,579.55 and 13,124,817.30 is: 19,687,225.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,897,719.70 : 28,346,579.55 = 13,124,817.30 : x
  2. Step 2: Convert to fraction form
    18,897,719.70/28,346,579.55 = 13,124,817.30/x
  3. Step 3: Cross multiply
    18,897,719.70x = 28,346,579.55 × 13,124,817.30
  4. Step 4: Simplify right side
    18,897,719.70x = 372,043,677,673,666.25
  5. Step 5: Solve for x
    x = 372,043,677,673,666.25/18,897,719.70
  6. Step 6: Final answer
    x = 19,687,225.95

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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.