Home / 659,126,837.60-988,690,256.40-368,889,192.80

Finding the Fourth Proportional to 659,126,837.60, 988,690,256.40 and 368,889,192.80

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Solution

The fourth proportional to 659,126,837.60, 988,690,256.40 and 368,889,192.80 is: 553,333,789.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,126,837.60 : 988,690,256.40 = 368,889,192.80 : x
  2. Step 2: Convert to fraction form
    659,126,837.60/988,690,256.40 = 368,889,192.80/x
  3. Step 3: Cross multiply
    659,126,837.60x = 988,690,256.40 × 368,889,192.80
  4. Step 4: Simplify right side
    659,126,837.60x = 364,717,150,612,621,056
  5. Step 5: Solve for x
    x = 364,717,150,612,621,056/659,126,837.60
  6. Step 6: Final answer
    x = 553,333,789.20

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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.