Home / 1,260,176,940.80-1,887,242,102.40-613,188,857.60

Finding the Fourth Proportional to 1,260,176,940.80, 1,887,242,102.40 and 613,188,857.60

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Solution

The fourth proportional to 1,260,176,940.80, 1,887,242,102.40 and 613,188,857.60 is: 918,312,176.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,176,940.80 : 1,887,242,102.40 = 613,188,857.60 : x
  2. Step 2: Convert to fraction form
    1,260,176,940.80/1,887,242,102.40 = 613,188,857.60/x
  3. Step 3: Cross multiply
    1,260,176,940.80x = 1,887,242,102.40 × 613,188,857.60
  4. Step 4: Simplify right side
    1,260,176,940.80x = 1,157,235,828,785,278,208
  5. Step 5: Solve for x
    x = 1,157,235,828,785,278,208/1,260,176,940.80
  6. Step 6: Final answer
    x = 918,312,176.11

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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.