Home / 12,562,571.40-18,830,458.50-7,159,587.90

Finding the Fourth Proportional to 12,562,571.40, 18,830,458.50 and 7,159,587.90

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Solution

The fourth proportional to 12,562,571.40, 18,830,458.50 and 7,159,587.90 is: 10,731,745.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,562,571.40 : 18,830,458.50 = 7,159,587.90 : x
  2. Step 2: Convert to fraction form
    12,562,571.40/18,830,458.50 = 7,159,587.90/x
  3. Step 3: Cross multiply
    12,562,571.40x = 18,830,458.50 × 7,159,587.90
  4. Step 4: Simplify right side
    12,562,571.40x = 134,818,322,828,052.16
  5. Step 5: Solve for x
    x = 134,818,322,828,052.16/12,562,571.40
  6. Step 6: Final answer
    x = 10,731,745.80

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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.