Home / 18,429,856.70-25,438,260.72-10,697,390.12

Finding the Fourth Proportional to 18,429,856.70, 25,438,260.72 and 10,697,390.12

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Solution

The fourth proportional to 18,429,856.70, 25,438,260.72 and 10,697,390.12 is: 14,765,334.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,429,856.70 : 25,438,260.72 = 10,697,390.12 : x
  2. Step 2: Convert to fraction form
    18,429,856.70/25,438,260.72 = 10,697,390.12/x
  3. Step 3: Cross multiply
    18,429,856.70x = 25,438,260.72 × 10,697,390.12
  4. Step 4: Simplify right side
    18,429,856.70x = 272,122,998,896,112.06
  5. Step 5: Solve for x
    x = 272,122,998,896,112.06/18,429,856.70
  6. Step 6: Final answer
    x = 14,765,334.50

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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.