Home / 15,309,677.71-21,127,318.26-8,340,412.53

Finding the Fourth Proportional to 15,309,677.71, 21,127,318.26 and 8,340,412.53

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Solution

The fourth proportional to 15,309,677.71, 21,127,318.26 and 8,340,412.53 is: 11,509,749.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,309,677.71 : 21,127,318.26 = 8,340,412.53 : x
  2. Step 2: Convert to fraction form
    15,309,677.71/21,127,318.26 = 8,340,412.53/x
  3. Step 3: Cross multiply
    15,309,677.71x = 21,127,318.26 × 8,340,412.53
  4. Step 4: Simplify right side
    15,309,677.71x = 176,210,550,000,936.25
  5. Step 5: Solve for x
    x = 176,210,550,000,936.25/15,309,677.71
  6. Step 6: Final answer
    x = 11,509,749.15

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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.