Home / 423,956,727.20-635,935,090.80-393,345,725.60

Finding the Fourth Proportional to 423,956,727.20, 635,935,090.80 and 393,345,725.60

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Solution

The fourth proportional to 423,956,727.20, 635,935,090.80 and 393,345,725.60 is: 590,018,588.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,956,727.20 : 635,935,090.80 = 393,345,725.60 : x
  2. Step 2: Convert to fraction form
    423,956,727.20/635,935,090.80 = 393,345,725.60/x
  3. Step 3: Cross multiply
    423,956,727.20x = 635,935,090.80 × 393,345,725.60
  4. Step 4: Simplify right side
    423,956,727.20x = 250,142,349,725,227,872
  5. Step 5: Solve for x
    x = 250,142,349,725,227,872/423,956,727.20
  6. Step 6: Final answer
    x = 590,018,588.40

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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.