Home / 31,451,409.27-43,416,337.14-21,144,111.08

Finding the Fourth Proportional to 31,451,409.27, 43,416,337.14 and 21,144,111.08

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Solution

The fourth proportional to 31,451,409.27, 43,416,337.14 and 21,144,111.08 is: 29,187,876.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,451,409.27 : 43,416,337.14 = 21,144,111.08 : x
  2. Step 2: Convert to fraction form
    31,451,409.27/43,416,337.14 = 21,144,111.08/x
  3. Step 3: Cross multiply
    31,451,409.27x = 43,416,337.14 × 21,144,111.08
  4. Step 4: Simplify right side
    31,451,409.27x = 917,999,854,957,807.75
  5. Step 5: Solve for x
    x = 917,999,854,957,807.75/31,451,409.27
  6. Step 6: Final answer
    x = 29,187,876.67

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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.