Home / 15,129,536.72-20,878,032.84-8,253,608.72

Finding the Fourth Proportional to 15,129,536.72, 20,878,032.84 and 8,253,608.72

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Solution

The fourth proportional to 15,129,536.72, 20,878,032.84 and 8,253,608.72 is: 11,389,582.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,129,536.72 : 20,878,032.84 = 8,253,608.72 : x
  2. Step 2: Convert to fraction form
    15,129,536.72/20,878,032.84 = 8,253,608.72/x
  3. Step 3: Cross multiply
    15,129,536.72x = 20,878,032.84 × 8,253,608.72
  4. Step 4: Simplify right side
    15,129,536.72x = 172,319,113,904,670.34
  5. Step 5: Solve for x
    x = 172,319,113,904,670.34/15,129,536.72
  6. Step 6: Final answer
    x = 11,389,582.98

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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.