Home / 72,070,139.89-108,105,209.84-18,217,451.89

Finding the Fourth Proportional to 72,070,139.89, 108,105,209.84 and 18,217,451.89

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Solution

The fourth proportional to 72,070,139.89, 108,105,209.84 and 18,217,451.89 is: 27,326,177.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,070,139.89 : 108,105,209.84 = 18,217,451.89 : x
  2. Step 2: Convert to fraction form
    72,070,139.89/108,105,209.84 = 18,217,451.89/x
  3. Step 3: Cross multiply
    72,070,139.89x = 108,105,209.84 × 18,217,451.89
  4. Step 4: Simplify right side
    72,070,139.89x = 1,969,401,459,318,554.75
  5. Step 5: Solve for x
    x = 1,969,401,459,318,554.75/72,070,139.89
  6. Step 6: Final answer
    x = 27,326,177.84

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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.