Home / 9,205,888.80-12,703,862.16-5,131,420.32

Finding the Fourth Proportional to 9,205,888.80, 12,703,862.16 and 5,131,420.32

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Solution

The fourth proportional to 9,205,888.80, 12,703,862.16 and 5,131,420.32 is: 7,081,212.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,205,888.80 : 12,703,862.16 = 5,131,420.32 : x
  2. Step 2: Convert to fraction form
    9,205,888.80/12,703,862.16 = 5,131,420.32/x
  3. Step 3: Cross multiply
    9,205,888.80x = 12,703,862.16 × 5,131,420.32
  4. Step 4: Simplify right side
    9,205,888.80x = 65,188,856,430,303.09
  5. Step 5: Solve for x
    x = 65,188,856,430,303.09/9,205,888.80
  6. Step 6: Final answer
    x = 7,081,212.67

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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.