Home / 13,581,800.88-18,743,239.80-7,470,389.76

Finding the Fourth Proportional to 13,581,800.88, 18,743,239.80 and 7,470,389.76

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Solution

The fourth proportional to 13,581,800.88, 18,743,239.80 and 7,470,389.76 is: 10,309,332.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,581,800.88 : 18,743,239.80 = 7,470,389.76 : x
  2. Step 2: Convert to fraction form
    13,581,800.88/18,743,239.80 = 7,470,389.76/x
  3. Step 3: Cross multiply
    13,581,800.88x = 18,743,239.80 × 7,470,389.76
  4. Step 4: Simplify right side
    13,581,800.88x = 140,019,306,671,144.45
  5. Step 5: Solve for x
    x = 140,019,306,671,144.45/13,581,800.88
  6. Step 6: Final answer
    x = 10,309,332.90

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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.