Home / 120,669,430.08-166,607,125.92-112,959,992.64

Finding the Fourth Proportional to 120,669,430.08, 166,607,125.92 and 112,959,992.64

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Solution

The fourth proportional to 120,669,430.08, 166,607,125.92 and 112,959,992.64 is: 155,962,779.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,669,430.08 : 166,607,125.92 = 112,959,992.64 : x
  2. Step 2: Convert to fraction form
    120,669,430.08/166,607,125.92 = 112,959,992.64/x
  3. Step 3: Cross multiply
    120,669,430.08x = 166,607,125.92 × 112,959,992.64
  4. Step 4: Simplify right side
    120,669,430.08x = 18,819,939,717,694,752
  5. Step 5: Solve for x
    x = 18,819,939,717,694,752/120,669,430.08
  6. Step 6: Final answer
    x = 155,962,779.51

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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.