Home / 120,463,438.28-166,237,869.72-66,816,461.92

Finding the Fourth Proportional to 120,463,438.28, 166,237,869.72 and 66,816,461.92

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Solution

The fourth proportional to 120,463,438.28, 166,237,869.72 and 66,816,461.92 is: 92,205,788.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,463,438.28 : 166,237,869.72 = 66,816,461.92 : x
  2. Step 2: Convert to fraction form
    120,463,438.28/166,237,869.72 = 66,816,461.92/x
  3. Step 3: Cross multiply
    120,463,438.28x = 166,237,869.72 × 66,816,461.92
  4. Step 4: Simplify right side
    120,463,438.28x = 11,107,426,291,808,302
  5. Step 5: Solve for x
    x = 11,107,426,291,808,302/120,463,438.28
  6. Step 6: Final answer
    x = 92,205,788.33

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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.