Home / 13,832,812.70-20,749,219.05-6,642,612.80

Finding the Fourth Proportional to 13,832,812.70, 20,749,219.05 and 6,642,612.80

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Solution

The fourth proportional to 13,832,812.70, 20,749,219.05 and 6,642,612.80 is: 9,963,919.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,832,812.70 : 20,749,219.05 = 6,642,612.80 : x
  2. Step 2: Convert to fraction form
    13,832,812.70/20,749,219.05 = 6,642,612.80/x
  3. Step 3: Cross multiply
    13,832,812.70x = 20,749,219.05 × 6,642,612.80
  4. Step 4: Simplify right side
    13,832,812.70x = 137,829,028,051,533.84
  5. Step 5: Solve for x
    x = 137,829,028,051,533.84/13,832,812.70
  6. Step 6: Final answer
    x = 9,963,919.20

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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.