Home / 280,422,090.40-420,633,135.60-165,461,706.40

Finding the Fourth Proportional to 280,422,090.40, 420,633,135.60 and 165,461,706.40

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Solution

The fourth proportional to 280,422,090.40, 420,633,135.60 and 165,461,706.40 is: 248,192,559.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,422,090.40 : 420,633,135.60 = 165,461,706.40 : x
  2. Step 2: Convert to fraction form
    280,422,090.40/420,633,135.60 = 165,461,706.40/x
  3. Step 3: Cross multiply
    280,422,090.40x = 420,633,135.60 × 165,461,706.40
  4. Step 4: Simplify right side
    280,422,090.40x = 69,598,676,384,758,592
  5. Step 5: Solve for x
    x = 69,598,676,384,758,592/280,422,090.40
  6. Step 6: Final answer
    x = 248,192,559.60

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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.