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Finding the Fourth Proportional to 609,134,607.07, 840,615,983.00 and 330,676,129.69

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Solution

The fourth proportional to 609,134,607.07, 840,615,983.00 and 330,676,129.69 is: 456,338,609.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,134,607.07 : 840,615,983.00 = 330,676,129.69 : x
  2. Step 2: Convert to fraction form
    609,134,607.07/840,615,983.00 = 330,676,129.69/x
  3. Step 3: Cross multiply
    609,134,607.07x = 840,615,983.00 × 330,676,129.69
  4. Step 4: Simplify right side
    609,134,607.07x = 277,971,639,811,476,640
  5. Step 5: Solve for x
    x = 277,971,639,811,476,640/609,134,607.07
  6. Step 6: Final answer
    x = 456,338,609.87

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.