Home / 1,530,512,427.44-2,112,101,970.32-861,457,084.72

Finding the Fourth Proportional to 1,530,512,427.44, 2,112,101,970.32 and 861,457,084.72

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Solution

The fourth proportional to 1,530,512,427.44, 2,112,101,970.32 and 861,457,084.72 is: 1,188,807,861.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,530,512,427.44 : 2,112,101,970.32 = 861,457,084.72 : x
  2. Step 2: Convert to fraction form
    1,530,512,427.44/2,112,101,970.32 = 861,457,084.72/x
  3. Step 3: Cross multiply
    1,530,512,427.44x = 2,112,101,970.32 × 861,457,084.72
  4. Step 4: Simplify right side
    1,530,512,427.44x = 1,819,485,205,983,235,072
  5. Step 5: Solve for x
    x = 1,819,485,205,983,235,072/1,530,512,427.44
  6. Step 6: Final answer
    x = 1,188,807,861.58

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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.