Home / 15,717,324.53-21,678,216.14-13,878,538.67

Finding the Fourth Proportional to 15,717,324.53, 21,678,216.14 and 13,878,538.67

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Solution

The fourth proportional to 15,717,324.53, 21,678,216.14 and 13,878,538.67 is: 19,142,059.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,717,324.53 : 21,678,216.14 = 13,878,538.67 : x
  2. Step 2: Convert to fraction form
    15,717,324.53/21,678,216.14 = 13,878,538.67/x
  3. Step 3: Cross multiply
    15,717,324.53x = 21,678,216.14 × 13,878,538.67
  4. Step 4: Simplify right side
    15,717,324.53x = 300,861,960,817,824.38
  5. Step 5: Solve for x
    x = 300,861,960,817,824.38/15,717,324.53
  6. Step 6: Final answer
    x = 19,142,059.47

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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.