Home / 21,715,339.52-29,978,802.87-16,742,920.70

Finding the Fourth Proportional to 21,715,339.52, 29,978,802.87 and 16,742,920.70

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Solution

The fourth proportional to 21,715,339.52, 29,978,802.87 and 16,742,920.70 is: 23,114,200.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,715,339.52 : 29,978,802.87 = 16,742,920.70 : x
  2. Step 2: Convert to fraction form
    21,715,339.52/29,978,802.87 = 16,742,920.70/x
  3. Step 3: Cross multiply
    21,715,339.52x = 29,978,802.87 × 16,742,920.70
  4. Step 4: Simplify right side
    21,715,339.52x = 501,932,719,133,342.38
  5. Step 5: Solve for x
    x = 501,932,719,133,342.38/21,715,339.52
  6. Step 6: Final answer
    x = 23,114,200.85

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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.