Home / 13,143,823.76-18,139,458.63-7,563,780.74

Finding the Fourth Proportional to 13,143,823.76, 18,139,458.63 and 7,563,780.74

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Solution

The fourth proportional to 13,143,823.76, 18,139,458.63 and 7,563,780.74 is: 10,438,582.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,143,823.76 : 18,139,458.63 = 7,563,780.74 : x
  2. Step 2: Convert to fraction form
    13,143,823.76/18,139,458.63 = 7,563,780.74/x
  3. Step 3: Cross multiply
    13,143,823.76x = 18,139,458.63 × 7,563,780.74
  4. Step 4: Simplify right side
    13,143,823.76x = 137,202,887,893,333.59
  5. Step 5: Solve for x
    x = 137,202,887,893,333.59/13,143,823.76
  6. Step 6: Final answer
    x = 10,438,582.44

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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.