Home / 28,543,635.52-39,390,242.88-15,490,896.64

Finding the Fourth Proportional to 28,543,635.52, 39,390,242.88 and 15,490,896.64

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Solution

The fourth proportional to 28,543,635.52, 39,390,242.88 and 15,490,896.64 is: 21,377,451.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,543,635.52 : 39,390,242.88 = 15,490,896.64 : x
  2. Step 2: Convert to fraction form
    28,543,635.52/39,390,242.88 = 15,490,896.64/x
  3. Step 3: Cross multiply
    28,543,635.52x = 39,390,242.88 × 15,490,896.64
  4. Step 4: Simplify right side
    28,543,635.52x = 610,190,181,078,576
  5. Step 5: Solve for x
    x = 610,190,181,078,576/28,543,635.52
  6. Step 6: Final answer
    x = 21,377,451.40

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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.