Home / 166,211,998.80-249,317,998.20-79,905,980.40

Finding the Fourth Proportional to 166,211,998.80, 249,317,998.20 and 79,905,980.40

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Solution

The fourth proportional to 166,211,998.80, 249,317,998.20 and 79,905,980.40 is: 119,858,970.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,211,998.80 : 249,317,998.20 = 79,905,980.40 : x
  2. Step 2: Convert to fraction form
    166,211,998.80/249,317,998.20 = 79,905,980.40/x
  3. Step 3: Cross multiply
    166,211,998.80x = 249,317,998.20 × 79,905,980.40
  4. Step 4: Simplify right side
    166,211,998.80x = 19,921,999,077,536,436
  5. Step 5: Solve for x
    x = 19,921,999,077,536,436/166,211,998.80
  6. Step 6: Final answer
    x = 119,858,970.60

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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.