Home / 670,009,129.20-1,005,013,693.80-515,040,933.60

Finding the Fourth Proportional to 670,009,129.20, 1,005,013,693.80 and 515,040,933.60

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Solution

The fourth proportional to 670,009,129.20, 1,005,013,693.80 and 515,040,933.60 is: 772,561,400.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,009,129.20 : 1,005,013,693.80 = 515,040,933.60 : x
  2. Step 2: Convert to fraction form
    670,009,129.20/1,005,013,693.80 = 515,040,933.60/x
  3. Step 3: Cross multiply
    670,009,129.20x = 1,005,013,693.80 × 515,040,933.60
  4. Step 4: Simplify right side
    670,009,129.20x = 517,623,191,135,536,512
  5. Step 5: Solve for x
    x = 517,623,191,135,536,512/670,009,129.20
  6. Step 6: Final answer
    x = 772,561,400.40

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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.