Home / 10,129,678.41-15,186,002.64-8,205,818.94

Finding the Fourth Proportional to 10,129,678.41, 15,186,002.64 and 8,205,818.94

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Solution

The fourth proportional to 10,129,678.41, 15,186,002.64 and 8,205,818.94 is: 12,301,830.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,129,678.41 : 15,186,002.64 = 8,205,818.94 : x
  2. Step 2: Convert to fraction form
    10,129,678.41/15,186,002.64 = 8,205,818.94/x
  3. Step 3: Cross multiply
    10,129,678.41x = 15,186,002.64 × 8,205,818.94
  4. Step 4: Simplify right side
    10,129,678.41x = 124,613,588,086,202.02
  5. Step 5: Solve for x
    x = 124,613,588,086,202.02/10,129,678.41
  6. Step 6: Final answer
    x = 12,301,830.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.