Home / 640,065,957.40-960,098,936.10-613,192,101.40

Finding the Fourth Proportional to 640,065,957.40, 960,098,936.10 and 613,192,101.40

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Solution

The fourth proportional to 640,065,957.40, 960,098,936.10 and 613,192,101.40 is: 919,788,152.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,065,957.40 : 960,098,936.10 = 613,192,101.40 : x
  2. Step 2: Convert to fraction form
    640,065,957.40/960,098,936.10 = 613,192,101.40/x
  3. Step 3: Cross multiply
    640,065,957.40x = 960,098,936.10 × 613,192,101.40
  4. Step 4: Simplify right side
    640,065,957.40x = 588,725,084,179,063,296
  5. Step 5: Solve for x
    x = 588,725,084,179,063,296/640,065,957.40
  6. Step 6: Final answer
    x = 919,788,152.10

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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.