Home / 9,079,421.78-12,529,148.95-5,158,659.91

Finding the Fourth Proportional to 9,079,421.78, 12,529,148.95 and 5,158,659.91

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Solution

The fourth proportional to 9,079,421.78, 12,529,148.95 and 5,158,659.91 is: 7,118,693.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,079,421.78 : 12,529,148.95 = 5,158,659.91 : x
  2. Step 2: Convert to fraction form
    9,079,421.78/12,529,148.95 = 5,158,659.91/x
  3. Step 3: Cross multiply
    9,079,421.78x = 12,529,148.95 × 5,158,659.91
  4. Step 4: Simplify right side
    9,079,421.78x = 64,633,618,393,401.20
  5. Step 5: Solve for x
    x = 64,633,618,393,401.20/9,079,421.78
  6. Step 6: Final answer
    x = 7,118,693.24

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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.