Home / 13,323,235.68-18,378,390.51-8,021,239.47

Finding the Fourth Proportional to 13,323,235.68, 18,378,390.51 and 8,021,239.47

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Solution

The fourth proportional to 13,323,235.68, 18,378,390.51 and 8,021,239.47 is: 11,064,689.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,323,235.68 : 18,378,390.51 = 8,021,239.47 : x
  2. Step 2: Convert to fraction form
    13,323,235.68/18,378,390.51 = 8,021,239.47/x
  3. Step 3: Cross multiply
    13,323,235.68x = 18,378,390.51 × 8,021,239.47
  4. Step 4: Simplify right side
    13,323,235.68x = 147,417,471,353,885.44
  5. Step 5: Solve for x
    x = 147,417,471,353,885.44/13,323,235.68
  6. Step 6: Final answer
    x = 11,064,689.91

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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.