Home / 113,315,428.20-169,973,142.30-45,206,999.40

Finding the Fourth Proportional to 113,315,428.20, 169,973,142.30 and 45,206,999.40

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Solution

The fourth proportional to 113,315,428.20, 169,973,142.30 and 45,206,999.40 is: 67,810,499.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,315,428.20 : 169,973,142.30 = 45,206,999.40 : x
  2. Step 2: Convert to fraction form
    113,315,428.20/169,973,142.30 = 45,206,999.40/x
  3. Step 3: Cross multiply
    113,315,428.20x = 169,973,142.30 × 45,206,999.40
  4. Step 4: Simplify right side
    113,315,428.20x = 7,683,975,741,972,215
  5. Step 5: Solve for x
    x = 7,683,975,741,972,215/113,315,428.20
  6. Step 6: Final answer
    x = 67,810,499.10

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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.