Home / 639,576,006.40-959,364,009.60-276,070,362.40

Finding the Fourth Proportional to 639,576,006.40, 959,364,009.60 and 276,070,362.40

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Solution

The fourth proportional to 639,576,006.40, 959,364,009.60 and 276,070,362.40 is: 414,105,543.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,576,006.40 : 959,364,009.60 = 276,070,362.40 : x
  2. Step 2: Convert to fraction form
    639,576,006.40/959,364,009.60 = 276,070,362.40/x
  3. Step 3: Cross multiply
    639,576,006.40x = 959,364,009.60 × 276,070,362.40
  4. Step 4: Simplify right side
    639,576,006.40x = 264,851,969,803,789,056
  5. Step 5: Solve for x
    x = 264,851,969,803,789,056/639,576,006.40
  6. Step 6: Final answer
    x = 414,105,543.60

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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.