Home / 20,139,930.47-30,218,826.83-10,553,030.07

Finding the Fourth Proportional to 20,139,930.47, 30,218,826.83 and 10,553,030.07

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Solution

The fourth proportional to 20,139,930.47, 30,218,826.83 and 10,553,030.07 is: 15,834,224.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,139,930.47 : 30,218,826.83 = 10,553,030.07 : x
  2. Step 2: Convert to fraction form
    20,139,930.47/30,218,826.83 = 10,553,030.07/x
  3. Step 3: Cross multiply
    20,139,930.47x = 30,218,826.83 × 10,553,030.07
  4. Step 4: Simplify right side
    20,139,930.47x = 318,900,188,164,347.62
  5. Step 5: Solve for x
    x = 318,900,188,164,347.62/20,139,930.47
  6. Step 6: Final answer
    x = 15,834,224.89

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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.