Home / 30,971,654.91-42,740,624.84-17,220,498.75

Finding the Fourth Proportional to 30,971,654.91, 42,740,624.84 and 17,220,498.75

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Solution

The fourth proportional to 30,971,654.91, 42,740,624.84 and 17,220,498.75 is: 23,764,144.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,971,654.91 : 42,740,624.84 = 17,220,498.75 : x
  2. Step 2: Convert to fraction form
    30,971,654.91/42,740,624.84 = 17,220,498.75/x
  3. Step 3: Cross multiply
    30,971,654.91x = 42,740,624.84 × 17,220,498.75
  4. Step 4: Simplify right side
    30,971,654.91x = 736,014,876,545,336.50
  5. Step 5: Solve for x
    x = 736,014,876,545,336.50/30,971,654.91
  6. Step 6: Final answer
    x = 23,764,144.30

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1.5x scale

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.