Home / 260,496,634.80-390,744,952.20-163,561,796.40

Finding the Fourth Proportional to 260,496,634.80, 390,744,952.20 and 163,561,796.40

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Solution

The fourth proportional to 260,496,634.80, 390,744,952.20 and 163,561,796.40 is: 245,342,694.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,496,634.80 : 390,744,952.20 = 163,561,796.40 : x
  2. Step 2: Convert to fraction form
    260,496,634.80/390,744,952.20 = 163,561,796.40/x
  3. Step 3: Cross multiply
    260,496,634.80x = 390,744,952.20 × 163,561,796.40
  4. Step 4: Simplify right side
    260,496,634.80x = 63,910,946,316,064,136
  5. Step 5: Solve for x
    x = 63,910,946,316,064,136/260,496,634.80
  6. Step 6: Final answer
    x = 245,342,694.60

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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.