Home / 1,248,823,180,071.30-1,871,912,676,651.40-420,062,783,720.11

Finding the Fourth Proportional to 1,248,823,180,071.30, 1,871,912,676,651.40 and 420,062,783,720.11

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Solution

The fourth proportional to 1,248,823,180,071.30, 1,871,912,676,651.40 and 420,062,783,720.11 is: 629,649,467,100.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,248,823,180,071.30 : 1,871,912,676,651.40 = 420,062,783,720.11 : x
  2. Step 2: Convert to fraction form
    1,248,823,180,071.30/1,871,912,676,651.40 = 420,062,783,720.11/x
  3. Step 3: Cross multiply
    1,248,823,180,071.30x = 1,871,912,676,651.40 × 420,062,783,720.11
  4. Step 4: Simplify right side
    1,248,823,180,071.30x = 786,320,849,835,149,234,274,304
  5. Step 5: Solve for x
    x = 786,320,849,835,149,234,274,304/1,248,823,180,071.30
  6. Step 6: Final answer
    x = 629,649,467,100.90

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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.