Home / 166,463,999.40-249,695,999.10-120,811,621.80

Finding the Fourth Proportional to 166,463,999.40, 249,695,999.10 and 120,811,621.80

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Solution

The fourth proportional to 166,463,999.40, 249,695,999.10 and 120,811,621.80 is: 181,217,432.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,463,999.40 : 249,695,999.10 = 120,811,621.80 : x
  2. Step 2: Convert to fraction form
    166,463,999.40/249,695,999.10 = 120,811,621.80/x
  3. Step 3: Cross multiply
    166,463,999.40x = 249,695,999.10 × 120,811,621.80
  4. Step 4: Simplify right side
    166,463,999.40x = 30,166,178,608,242,340
  5. Step 5: Solve for x
    x = 30,166,178,608,242,340/166,463,999.40
  6. Step 6: Final answer
    x = 181,217,432.70

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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.