Home / 120,312,675.18-166,026,708.78-68,112,539.06

Finding the Fourth Proportional to 120,312,675.18, 166,026,708.78 and 68,112,539.06

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Solution

The fourth proportional to 120,312,675.18, 166,026,708.78 and 68,112,539.06 is: 93,992,596.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,312,675.18 : 166,026,708.78 = 68,112,539.06 : x
  2. Step 2: Convert to fraction form
    120,312,675.18/166,026,708.78 = 68,112,539.06/x
  3. Step 3: Cross multiply
    120,312,675.18x = 166,026,708.78 × 68,112,539.06
  4. Step 4: Simplify right side
    120,312,675.18x = 11,308,500,686,780,996
  5. Step 5: Solve for x
    x = 11,308,500,686,780,996/120,312,675.18
  6. Step 6: Final answer
    x = 93,992,596.12

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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.