Home / 72,384,000.30-108,576,000.45-65,217,638.70

Finding the Fourth Proportional to 72,384,000.30, 108,576,000.45 and 65,217,638.70

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Solution

The fourth proportional to 72,384,000.30, 108,576,000.45 and 65,217,638.70 is: 97,826,458.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,384,000.30 : 108,576,000.45 = 65,217,638.70 : x
  2. Step 2: Convert to fraction form
    72,384,000.30/108,576,000.45 = 65,217,638.70/x
  3. Step 3: Cross multiply
    72,384,000.30x = 108,576,000.45 × 65,217,638.70
  4. Step 4: Simplify right side
    72,384,000.30x = 7,081,070,368,839,138
  5. Step 5: Solve for x
    x = 7,081,070,368,839,138/72,384,000.30
  6. Step 6: Final answer
    x = 97,826,458.05

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1.5x scale

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.