Home / 829,507,983.40-1,244,261,975.10-521,802,332.20

Finding the Fourth Proportional to 829,507,983.40, 1,244,261,975.10 and 521,802,332.20

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Solution

The fourth proportional to 829,507,983.40, 1,244,261,975.10 and 521,802,332.20 is: 782,703,498.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,507,983.40 : 1,244,261,975.10 = 521,802,332.20 : x
  2. Step 2: Convert to fraction form
    829,507,983.40/1,244,261,975.10 = 521,802,332.20/x
  3. Step 3: Cross multiply
    829,507,983.40x = 1,244,261,975.10 × 521,802,332.20
  4. Step 4: Simplify right side
    829,507,983.40x = 649,258,800,474,958,208
  5. Step 5: Solve for x
    x = 649,258,800,474,958,208/829,507,983.40
  6. Step 6: Final answer
    x = 782,703,498.30

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Double scale
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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.