Home / 108,323,142.32-149,485,936.40-61,914,392.69

Finding the Fourth Proportional to 108,323,142.32, 149,485,936.40 and 61,914,392.69

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Solution

The fourth proportional to 108,323,142.32, 149,485,936.40 and 61,914,392.69 is: 85,441,861.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,323,142.32 : 149,485,936.40 = 61,914,392.69 : x
  2. Step 2: Convert to fraction form
    108,323,142.32/149,485,936.40 = 61,914,392.69/x
  3. Step 3: Cross multiply
    108,323,142.32x = 149,485,936.40 × 61,914,392.69
  4. Step 4: Simplify right side
    108,323,142.32x = 9,255,330,966,844,964
  5. Step 5: Solve for x
    x = 9,255,330,966,844,964/108,323,142.32
  6. Step 6: Final answer
    x = 85,441,861.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.