Home / 640,064,143.40-960,096,215.10-629,860,476.20

Finding the Fourth Proportional to 640,064,143.40, 960,096,215.10 and 629,860,476.20

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Solution

The fourth proportional to 640,064,143.40, 960,096,215.10 and 629,860,476.20 is: 944,790,714.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,064,143.40 : 960,096,215.10 = 629,860,476.20 : x
  2. Step 2: Convert to fraction form
    640,064,143.40/960,096,215.10 = 629,860,476.20/x
  3. Step 3: Cross multiply
    640,064,143.40x = 960,096,215.10 × 629,860,476.20
  4. Step 4: Simplify right side
    640,064,143.40x = 604,726,659,240,703,744
  5. Step 5: Solve for x
    x = 604,726,659,240,703,744/640,064,143.40
  6. Step 6: Final answer
    x = 944,790,714.30

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Similar ratio
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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.