Home / 30,421,521.24-41,980,329.34-16,670,190.12

Finding the Fourth Proportional to 30,421,521.24, 41,980,329.34 and 16,670,190.12

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Solution

The fourth proportional to 30,421,521.24, 41,980,329.34 and 16,670,190.12 is: 23,004,111.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,421,521.24 : 41,980,329.34 = 16,670,190.12 : x
  2. Step 2: Convert to fraction form
    30,421,521.24/41,980,329.34 = 16,670,190.12/x
  3. Step 3: Cross multiply
    30,421,521.24x = 41,980,329.34 × 16,670,190.12
  4. Step 4: Simplify right side
    30,421,521.24x = 699,820,071,398,014.12
  5. Step 5: Solve for x
    x = 699,820,071,398,014.12/30,421,521.24
  6. Step 6: Final answer
    x = 23,004,111.66

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Double scale
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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.