Home / 13,832,881.70-20,749,322.55-6,642,681.80

Finding the Fourth Proportional to 13,832,881.70, 20,749,322.55 and 6,642,681.80

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Solution

The fourth proportional to 13,832,881.70, 20,749,322.55 and 6,642,681.80 is: 9,964,022.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,832,881.70 : 20,749,322.55 = 6,642,681.80 : x
  2. Step 2: Convert to fraction form
    13,832,881.70/20,749,322.55 = 6,642,681.80/x
  3. Step 3: Cross multiply
    13,832,881.70x = 20,749,322.55 × 6,642,681.80
  4. Step 4: Simplify right side
    13,832,881.70x = 137,831,147,265,214.59
  5. Step 5: Solve for x
    x = 137,831,147,265,214.59/13,832,881.70
  6. Step 6: Final answer
    x = 9,964,022.70

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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.