Home / 887,431,208.80-1,328,595,896.40-543,057,440.80

Finding the Fourth Proportional to 887,431,208.80, 1,328,595,896.40 and 543,057,440.80

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Solution

The fourth proportional to 887,431,208.80, 1,328,595,896.40 and 543,057,440.80 is: 813,025,145.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,431,208.80 : 1,328,595,896.40 = 543,057,440.80 : x
  2. Step 2: Convert to fraction form
    887,431,208.80/1,328,595,896.40 = 543,057,440.80/x
  3. Step 3: Cross multiply
    887,431,208.80x = 1,328,595,896.40 × 543,057,440.80
  4. Step 4: Simplify right side
    887,431,208.80x = 721,503,887,356,365,952
  5. Step 5: Solve for x
    x = 721,503,887,356,365,952/887,431,208.80
  6. Step 6: Final answer
    x = 813,025,145.16

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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.