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Finding the Fourth Proportional to 166,489,409.80, 249,734,114.70 and 51,485,577.40

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Solution

The fourth proportional to 166,489,409.80, 249,734,114.70 and 51,485,577.40 is: 77,228,366.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,489,409.80 : 249,734,114.70 = 51,485,577.40 : x
  2. Step 2: Convert to fraction form
    166,489,409.80/249,734,114.70 = 51,485,577.40/x
  3. Step 3: Cross multiply
    166,489,409.80x = 249,734,114.70 × 51,485,577.40
  4. Step 4: Simplify right side
    166,489,409.80x = 12,857,705,091,807,326
  5. Step 5: Solve for x
    x = 12,857,705,091,807,326/166,489,409.80
  6. Step 6: Final answer
    x = 77,228,366.10

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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.