Home / 13,440,985,755.20-20,155,432,015.20-5,157,119,643.20

Finding the Fourth Proportional to 13,440,985,755.20, 20,155,432,015.20 and 5,157,119,643.20

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Solution

The fourth proportional to 13,440,985,755.20, 20,155,432,015.20 and 5,157,119,643.20 is: 7,733,359,461.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,440,985,755.20 : 20,155,432,015.20 = 5,157,119,643.20 : x
  2. Step 2: Convert to fraction form
    13,440,985,755.20/20,155,432,015.20 = 5,157,119,643.20/x
  3. Step 3: Cross multiply
    13,440,985,755.20x = 20,155,432,015.20 × 5,157,119,643.20
  4. Step 4: Simplify right side
    13,440,985,755.20x = 103,943,974,362,770,079,744
  5. Step 5: Solve for x
    x = 103,943,974,362,770,079,744/13,440,985,755.20
  6. Step 6: Final answer
    x = 7,733,359,461.57

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1.5x scale

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.