Home / 10,439,647.61-15,670,925.82-8,294,459.40

Finding the Fourth Proportional to 10,439,647.61, 15,670,925.82 and 8,294,459.40

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Solution

The fourth proportional to 10,439,647.61, 15,670,925.82 and 8,294,459.40 is: 12,450,789.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,439,647.61 : 15,670,925.82 = 8,294,459.40 : x
  2. Step 2: Convert to fraction form
    10,439,647.61/15,670,925.82 = 8,294,459.40/x
  3. Step 3: Cross multiply
    10,439,647.61x = 15,670,925.82 × 8,294,459.40
  4. Step 4: Simplify right side
    10,439,647.61x = 129,981,857,974,401.72
  5. Step 5: Solve for x
    x = 129,981,857,974,401.72/10,439,647.61
  6. Step 6: Final answer
    x = 12,450,789.81

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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.