Home / 15,148,172.10-20,904,643.71-8,272,856.46

Finding the Fourth Proportional to 15,148,172.10, 20,904,643.71 and 8,272,856.46

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Solution

The fourth proportional to 15,148,172.10, 20,904,643.71 and 8,272,856.46 is: 11,416,632.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,148,172.10 : 20,904,643.71 = 8,272,856.46 : x
  2. Step 2: Convert to fraction form
    15,148,172.10/20,904,643.71 = 8,272,856.46/x
  3. Step 3: Cross multiply
    15,148,172.10x = 20,904,643.71 × 8,272,856.46
  4. Step 4: Simplify right side
    15,148,172.10x = 172,941,116,760,271.88
  5. Step 5: Solve for x
    x = 172,941,116,760,271.88/15,148,172.10
  6. Step 6: Final answer
    x = 11,416,632.69

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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.