Home / 15,586,856.70-21,509,808.39-8,711,338.77

Finding the Fourth Proportional to 15,586,856.70, 21,509,808.39 and 8,711,338.77

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Solution

The fourth proportional to 15,586,856.70, 21,509,808.39 and 8,711,338.77 is: 12,021,617.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,586,856.70 : 21,509,808.39 = 8,711,338.77 : x
  2. Step 2: Convert to fraction form
    15,586,856.70/21,509,808.39 = 8,711,338.77/x
  3. Step 3: Cross multiply
    15,586,856.70x = 21,509,808.39 × 8,711,338.77
  4. Step 4: Simplify right side
    15,586,856.70x = 187,379,227,763,078.28
  5. Step 5: Solve for x
    x = 187,379,227,763,078.28/15,586,856.70
  6. Step 6: Final answer
    x = 12,021,617.40

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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.