Home / 21,342,079.69-29,456,059.93-12,174,722.44

Finding the Fourth Proportional to 21,342,079.69, 29,456,059.93 and 12,174,722.44

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Solution

The fourth proportional to 21,342,079.69, 29,456,059.93 and 12,174,722.44 is: 16,803,393.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,342,079.69 : 29,456,059.93 = 12,174,722.44 : x
  2. Step 2: Convert to fraction form
    21,342,079.69/29,456,059.93 = 12,174,722.44/x
  3. Step 3: Cross multiply
    21,342,079.69x = 29,456,059.93 × 12,174,722.44
  4. Step 4: Simplify right side
    21,342,079.69x = 358,619,353,719,678.88
  5. Step 5: Solve for x
    x = 358,619,353,719,678.88/21,342,079.69
  6. Step 6: Final answer
    x = 16,803,393.06

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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.