Home / 45,480,120.80-68,220,181.20-13,133,078.60

Finding the Fourth Proportional to 45,480,120.80, 68,220,181.20 and 13,133,078.60

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Solution

The fourth proportional to 45,480,120.80, 68,220,181.20 and 13,133,078.60 is: 19,699,617.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,480,120.80 : 68,220,181.20 = 13,133,078.60 : x
  2. Step 2: Convert to fraction form
    45,480,120.80/68,220,181.20 = 13,133,078.60/x
  3. Step 3: Cross multiply
    45,480,120.80x = 68,220,181.20 × 13,133,078.60
  4. Step 4: Simplify right side
    45,480,120.80x = 895,941,001,805,842.38
  5. Step 5: Solve for x
    x = 895,941,001,805,842.38/45,480,120.80
  6. Step 6: Final answer
    x = 19,699,617.90

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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.