Home / 166,432,018.80-249,548,495.40-85,810,450.80

Finding the Fourth Proportional to 166,432,018.80, 249,548,495.40 and 85,810,450.80

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Solution

The fourth proportional to 166,432,018.80, 249,548,495.40 and 85,810,450.80 is: 128,664,358.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,432,018.80 : 249,548,495.40 = 85,810,450.80 : x
  2. Step 2: Convert to fraction form
    166,432,018.80/249,548,495.40 = 85,810,450.80/x
  3. Step 3: Cross multiply
    166,432,018.80x = 249,548,495.40 × 85,810,450.80
  4. Step 4: Simplify right side
    166,432,018.80x = 21,413,868,886,735,728
  5. Step 5: Solve for x
    x = 21,413,868,886,735,728/166,432,018.80
  6. Step 6: Final answer
    x = 128,664,358.22

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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.