Home / 72,771,166.60-109,156,749.90-21,646,542.40

Finding the Fourth Proportional to 72,771,166.60, 109,156,749.90 and 21,646,542.40

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Solution

The fourth proportional to 72,771,166.60, 109,156,749.90 and 21,646,542.40 is: 32,469,813.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,771,166.60 : 109,156,749.90 = 21,646,542.40 : x
  2. Step 2: Convert to fraction form
    72,771,166.60/109,156,749.90 = 21,646,542.40/x
  3. Step 3: Cross multiply
    72,771,166.60x = 109,156,749.90 × 21,646,542.40
  4. Step 4: Simplify right side
    72,771,166.60x = 2,362,866,214,956,545.50
  5. Step 5: Solve for x
    x = 2,362,866,214,956,545.50/72,771,166.60
  6. Step 6: Final answer
    x = 32,469,813.60

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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.