Home / 147,087,157.03-202,989,451.76-81,007,638.20

Finding the Fourth Proportional to 147,087,157.03, 202,989,451.76 and 81,007,638.20

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Solution

The fourth proportional to 147,087,157.03, 202,989,451.76 and 81,007,638.20 is: 111,795,593.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,087,157.03 : 202,989,451.76 = 81,007,638.20 : x
  2. Step 2: Convert to fraction form
    147,087,157.03/202,989,451.76 = 81,007,638.20/x
  3. Step 3: Cross multiply
    147,087,157.03x = 202,989,451.76 × 81,007,638.20
  4. Step 4: Simplify right side
    147,087,157.03x = 16,443,696,066,690,296
  5. Step 5: Solve for x
    x = 16,443,696,066,690,296/147,087,157.03
  6. Step 6: Final answer
    x = 111,795,593.84

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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.