Home / 275,325,340.80-412,988,011.20-121,808,438.40

Finding the Fourth Proportional to 275,325,340.80, 412,988,011.20 and 121,808,438.40

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Solution

The fourth proportional to 275,325,340.80, 412,988,011.20 and 121,808,438.40 is: 182,712,657.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,325,340.80 : 412,988,011.20 = 121,808,438.40 : x
  2. Step 2: Convert to fraction form
    275,325,340.80/412,988,011.20 = 121,808,438.40/x
  3. Step 3: Cross multiply
    275,325,340.80x = 412,988,011.20 × 121,808,438.40
  4. Step 4: Simplify right side
    275,325,340.80x = 50,305,424,722,193,712
  5. Step 5: Solve for x
    x = 50,305,424,722,193,712/275,325,340.80
  6. Step 6: Final answer
    x = 182,712,657.60

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1.5x scale

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.