Home / 166,212,010.80-249,318,016.20-79,905,992.40

Finding the Fourth Proportional to 166,212,010.80, 249,318,016.20 and 79,905,992.40

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Solution

The fourth proportional to 166,212,010.80, 249,318,016.20 and 79,905,992.40 is: 119,858,988.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,212,010.80 : 249,318,016.20 = 79,905,992.40 : x
  2. Step 2: Convert to fraction form
    166,212,010.80/249,318,016.20 = 79,905,992.40/x
  3. Step 3: Cross multiply
    166,212,010.80x = 249,318,016.20 × 79,905,992.40
  4. Step 4: Simplify right side
    166,212,010.80x = 19,922,003,507,660,276
  5. Step 5: Solve for x
    x = 19,922,003,507,660,276/166,212,010.80
  6. Step 6: Final answer
    x = 119,858,988.60

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1.5x scale

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.