Home / 12,671,851.68-18,955,719.78-10,118,054.70

Finding the Fourth Proportional to 12,671,851.68, 18,955,719.78 and 10,118,054.70

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Solution

The fourth proportional to 12,671,851.68, 18,955,719.78 and 10,118,054.70 is: 15,135,515.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,671,851.68 : 18,955,719.78 = 10,118,054.70 : x
  2. Step 2: Convert to fraction form
    12,671,851.68/18,955,719.78 = 10,118,054.70/x
  3. Step 3: Cross multiply
    12,671,851.68x = 18,955,719.78 × 10,118,054.70
  4. Step 4: Simplify right side
    12,671,851.68x = 191,795,009,611,911.97
  5. Step 5: Solve for x
    x = 191,795,009,611,911.97/12,671,851.68
  6. Step 6: Final answer
    x = 15,135,515.67

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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.