Home / 166,490,142.12-249,821,323.27-120,808,636.52

Finding the Fourth Proportional to 166,490,142.12, 249,821,323.27 and 120,808,636.52

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Solution

The fourth proportional to 166,490,142.12, 249,821,323.27 and 120,808,636.52 is: 181,275,438.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,490,142.12 : 249,821,323.27 = 120,808,636.52 : x
  2. Step 2: Convert to fraction form
    166,490,142.12/249,821,323.27 = 120,808,636.52/x
  3. Step 3: Cross multiply
    166,490,142.12x = 249,821,323.27 × 120,808,636.52
  4. Step 4: Simplify right side
    166,490,142.12x = 30,180,573,436,319,720
  5. Step 5: Solve for x
    x = 30,180,573,436,319,720/166,490,142.12
  6. Step 6: Final answer
    x = 181,275,438.01

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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.