Home / 143,137,558,773.76-197,530,427,738.88-78,906,872,030.04

Finding the Fourth Proportional to 143,137,558,773.76, 197,530,427,738.88 and 78,906,872,030.04

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Solution

The fourth proportional to 143,137,558,773.76, 197,530,427,738.88 and 78,906,872,030.04 is: 108,891,812,303.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,137,558,773.76 : 197,530,427,738.88 = 78,906,872,030.04 : x
  2. Step 2: Convert to fraction form
    143,137,558,773.76/197,530,427,738.88 = 78,906,872,030.04/x
  3. Step 3: Cross multiply
    143,137,558,773.76x = 197,530,427,738.88 × 78,906,872,030.04
  4. Step 4: Simplify right side
    143,137,558,773.76x = 15,586,508,183,630,866,546,688
  5. Step 5: Solve for x
    x = 15,586,508,183,630,866,546,688/143,137,558,773.76
  6. Step 6: Final answer
    x = 108,891,812,303.90

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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.