Home / 166,109,807.40-249,164,711.10-79,827,408.60

Finding the Fourth Proportional to 166,109,807.40, 249,164,711.10 and 79,827,408.60

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Solution

The fourth proportional to 166,109,807.40, 249,164,711.10 and 79,827,408.60 is: 119,741,112.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,109,807.40 : 249,164,711.10 = 79,827,408.60 : x
  2. Step 2: Convert to fraction form
    166,109,807.40/249,164,711.10 = 79,827,408.60/x
  3. Step 3: Cross multiply
    166,109,807.40x = 249,164,711.10 × 79,827,408.60
  4. Step 4: Simplify right side
    166,109,807.40x = 19,890,173,201,680,652
  5. Step 5: Solve for x
    x = 19,890,173,201,680,652/166,109,807.40
  6. Step 6: Final answer
    x = 119,741,112.90

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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.