Home / 5,128,189,498.56-7,692,045,952.32-2,139,018,893.76

Finding the Fourth Proportional to 5,128,189,498.56, 7,692,045,952.32 and 2,139,018,893.76

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Solution

The fourth proportional to 5,128,189,498.56, 7,692,045,952.32 and 2,139,018,893.76 is: 3,208,428,945.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,128,189,498.56 : 7,692,045,952.32 = 2,139,018,893.76 : x
  2. Step 2: Convert to fraction form
    5,128,189,498.56/7,692,045,952.32 = 2,139,018,893.76/x
  3. Step 3: Cross multiply
    5,128,189,498.56x = 7,692,045,952.32 × 2,139,018,893.76
  4. Step 4: Simplify right side
    5,128,189,498.56x = 16,453,431,623,682,611,200
  5. Step 5: Solve for x
    x = 16,453,431,623,682,611,200/5,128,189,498.56
  6. Step 6: Final answer
    x = 3,208,428,945.21

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1.5x scale

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.