Home / 1,231,178,999.36-1,698,993,837.12-702,533,419.52

Finding the Fourth Proportional to 1,231,178,999.36, 1,698,993,837.12 and 702,533,419.52

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Solution

The fourth proportional to 1,231,178,999.36, 1,698,993,837.12 and 702,533,419.52 is: 969,477,184.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,178,999.36 : 1,698,993,837.12 = 702,533,419.52 : x
  2. Step 2: Convert to fraction form
    1,231,178,999.36/1,698,993,837.12 = 702,533,419.52/x
  3. Step 3: Cross multiply
    1,231,178,999.36x = 1,698,993,837.12 × 702,533,419.52
  4. Step 4: Simplify right side
    1,231,178,999.36x = 1,193,599,950,135,319,296
  5. Step 5: Solve for x
    x = 1,193,599,950,135,319,296/1,231,178,999.36
  6. Step 6: Final answer
    x = 969,477,184.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.