Home / 15,014,765.40-20,720,403.90-8,139,226.20

Finding the Fourth Proportional to 15,014,765.40, 20,720,403.90 and 8,139,226.20

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Solution

The fourth proportional to 15,014,765.40, 20,720,403.90 and 8,139,226.20 is: 11,232,147.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,014,765.40 : 20,720,403.90 = 8,139,226.20 : x
  2. Step 2: Convert to fraction form
    15,014,765.40/20,720,403.90 = 8,139,226.20/x
  3. Step 3: Cross multiply
    15,014,765.40x = 20,720,403.90 × 8,139,226.20
  4. Step 4: Simplify right side
    15,014,765.40x = 168,648,054,297,462.16
  5. Step 5: Solve for x
    x = 168,648,054,297,462.16/15,014,765.40
  6. Step 6: Final answer
    x = 11,232,147.14

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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.