Home / 14,119,397.28-19,478,296.80-8,315,400.60

Finding the Fourth Proportional to 14,119,397.28, 19,478,296.80 and 8,315,400.60

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Solution

The fourth proportional to 14,119,397.28, 19,478,296.80 and 8,315,400.60 is: 11,471,441.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,119,397.28 : 19,478,296.80 = 8,315,400.60 : x
  2. Step 2: Convert to fraction form
    14,119,397.28/19,478,296.80 = 8,315,400.60/x
  3. Step 3: Cross multiply
    14,119,397.28x = 19,478,296.80 × 8,315,400.60
  4. Step 4: Simplify right side
    14,119,397.28x = 161,969,840,897,698.09
  5. Step 5: Solve for x
    x = 161,969,840,897,698.09/14,119,397.28
  6. Step 6: Final answer
    x = 11,471,441.57

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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.