Home / 9,131,879.72-12,601,347.55-5,210,717.06

Finding the Fourth Proportional to 9,131,879.72, 12,601,347.55 and 5,210,717.06

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Solution

The fourth proportional to 9,131,879.72, 12,601,347.55 and 5,210,717.06 is: 7,190,420.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,131,879.72 : 12,601,347.55 = 5,210,717.06 : x
  2. Step 2: Convert to fraction form
    9,131,879.72/12,601,347.55 = 5,210,717.06/x
  3. Step 3: Cross multiply
    9,131,879.72x = 12,601,347.55 × 5,210,717.06
  4. Step 4: Simplify right side
    9,131,879.72x = 65,662,056,676,250.77
  5. Step 5: Solve for x
    x = 65,662,056,676,250.77/9,131,879.72
  6. Step 6: Final answer
    x = 7,190,420.67

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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.