Home / 15,635,626.81-21,578,457.71-8,668,490.65

Finding the Fourth Proportional to 15,635,626.81, 21,578,457.71 and 8,668,490.65

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Solution

The fourth proportional to 15,635,626.81, 21,578,457.71 and 8,668,490.65 is: 11,963,233.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,635,626.81 : 21,578,457.71 = 8,668,490.65 : x
  2. Step 2: Convert to fraction form
    15,635,626.81/21,578,457.71 = 8,668,490.65/x
  3. Step 3: Cross multiply
    15,635,626.81x = 21,578,457.71 × 8,668,490.65
  4. Step 4: Simplify right side
    15,635,626.81x = 187,052,659,027,309
  5. Step 5: Solve for x
    x = 187,052,659,027,309/15,635,626.81
  6. Step 6: Final answer
    x = 11,963,233.80

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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.