Home / 20,354,775.04-28,089,765.12-11,187,631.36

Finding the Fourth Proportional to 20,354,775.04, 28,089,765.12 and 11,187,631.36

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Solution

The fourth proportional to 20,354,775.04, 28,089,765.12 and 11,187,631.36 is: 15,439,027.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,354,775.04 : 28,089,765.12 = 11,187,631.36 : x
  2. Step 2: Convert to fraction form
    20,354,775.04/28,089,765.12 = 11,187,631.36/x
  3. Step 3: Cross multiply
    20,354,775.04x = 28,089,765.12 × 11,187,631.36
  4. Step 4: Simplify right side
    20,354,775.04x = 314,257,937,151,546.19
  5. Step 5: Solve for x
    x = 314,257,937,151,546.19/20,354,775.04
  6. Step 6: Final answer
    x = 15,439,027.77

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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.