Home / 7,678,077.60-11,521,090.80-3,132,458.40

Finding the Fourth Proportional to 7,678,077.60, 11,521,090.80 and 3,132,458.40

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Solution

The fourth proportional to 7,678,077.60, 11,521,090.80 and 3,132,458.40 is: 4,700,309.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,678,077.60 : 11,521,090.80 = 3,132,458.40 : x
  2. Step 2: Convert to fraction form
    7,678,077.60/11,521,090.80 = 3,132,458.40/x
  3. Step 3: Cross multiply
    7,678,077.60x = 11,521,090.80 × 3,132,458.40
  4. Step 4: Simplify right side
    7,678,077.60x = 36,089,337,653,622.72
  5. Step 5: Solve for x
    x = 36,089,337,653,622.72/7,678,077.60
  6. Step 6: Final answer
    x = 4,700,309.05

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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.