Home / 13,610,020.20-20,415,030.30-12,121,985.40

Finding the Fourth Proportional to 13,610,020.20, 20,415,030.30 and 12,121,985.40

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Solution

The fourth proportional to 13,610,020.20, 20,415,030.30 and 12,121,985.40 is: 18,182,978.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,610,020.20 : 20,415,030.30 = 12,121,985.40 : x
  2. Step 2: Convert to fraction form
    13,610,020.20/20,415,030.30 = 12,121,985.40/x
  3. Step 3: Cross multiply
    13,610,020.20x = 20,415,030.30 × 12,121,985.40
  4. Step 4: Simplify right side
    13,610,020.20x = 247,470,699,237,157.62
  5. Step 5: Solve for x
    x = 247,470,699,237,157.62/13,610,020.20
  6. Step 6: Final answer
    x = 18,182,978.10

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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.