Home / 78,789,369.60-117,953,107.20-56,114,553.60

Finding the Fourth Proportional to 78,789,369.60, 117,953,107.20 and 56,114,553.60

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Solution

The fourth proportional to 78,789,369.60, 117,953,107.20 and 56,114,553.60 is: 84,007,347.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,789,369.60 : 117,953,107.20 = 56,114,553.60 : x
  2. Step 2: Convert to fraction form
    78,789,369.60/117,953,107.20 = 56,114,553.60/x
  3. Step 3: Cross multiply
    78,789,369.60x = 117,953,107.20 × 56,114,553.60
  4. Step 4: Simplify right side
    78,789,369.60x = 6,618,885,956,260,946
  5. Step 5: Solve for x
    x = 6,618,885,956,260,946/78,789,369.60
  6. Step 6: Final answer
    x = 84,007,347.56

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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.