Home / 120,965,157,847.80-181,447,736,771.70-83,742,179,902.20

Finding the Fourth Proportional to 120,965,157,847.80, 181,447,736,771.70 and 83,742,179,902.20

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Solution

The fourth proportional to 120,965,157,847.80, 181,447,736,771.70 and 83,742,179,902.20 is: 125,613,269,853.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,965,157,847.80 : 181,447,736,771.70 = 83,742,179,902.20 : x
  2. Step 2: Convert to fraction form
    120,965,157,847.80/181,447,736,771.70 = 83,742,179,902.20/x
  3. Step 3: Cross multiply
    120,965,157,847.80x = 181,447,736,771.70 × 83,742,179,902.20
  4. Step 4: Simplify right side
    120,965,157,847.80x = 15,194,829,015,582,731,403,264
  5. Step 5: Solve for x
    x = 15,194,829,015,582,731,403,264/120,965,157,847.80
  6. Step 6: Final answer
    x = 125,613,269,853.30

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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.