Home / 19,407,619.20-29,135,390.40-12,219,139.20

Finding the Fourth Proportional to 19,407,619.20, 29,135,390.40 and 12,219,139.20

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Solution

The fourth proportional to 19,407,619.20, 29,135,390.40 and 12,219,139.20 is: 18,343,795.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,407,619.20 : 29,135,390.40 = 12,219,139.20 : x
  2. Step 2: Convert to fraction form
    19,407,619.20/29,135,390.40 = 12,219,139.20/x
  3. Step 3: Cross multiply
    19,407,619.20x = 29,135,390.40 × 12,219,139.20
  4. Step 4: Simplify right side
    19,407,619.20x = 356,009,390,943,943.62
  5. Step 5: Solve for x
    x = 356,009,390,943,943.62/19,407,619.20
  6. Step 6: Final answer
    x = 18,343,795.15

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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.